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Dr. Calvin Parker III, MD
Gastroenterology* Age 52
Dr. Calvin Parker III, MD
5.0 (1 Ratings)
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Dr. Calvin Parker III, MD is a Gastroenterologist in Pikesville, MD.
Dr. Calvin Parker III, MD
5.0 (1 Ratings)
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Dr. Calvin Parker III, MD

Gastroenterology* Age 52
Pikesville, MD
Call for new patient details
22 years of experience
Dr. Calvin Parker III, MD is a Gastroenterologist in Pikesville, MD.

About

Dr. Parker III graduated from Howard University College of Medicine in 2004 and completed a residency at Dwight D Eisenhower Medical Center. Dr. Calvin Parker III, MD is a Gastroenterologist in Pikesville, MD and has 22 years experience. Dr. Parker III currently practices at Woodholme Gastroenterology Associates-Pikesville and is affiliated with Northwest Hospital Center and Carroll Hospital Center. Dr. Parker III has experience treating conditions like Indigestion, Constipation, Nausea, Esophageal Ulcer, Intestinal Diverticulitis, Intestinal Diverticulosis, Irritable Bowel Syndrome, Pancreatitis, Dysphagia, Gallstones and Abdominal Pain among other conditions at varying frequencies. Dr. Parker III's office is not accepting new patients. Dr. Parker III is board certified in Gastroenterology and accepts multiple insurance plans.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Low Wait Times

Patients are usually seen in 10 minutes or less.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

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Experience Check

Enter a condition or procedure
Indigestion
Constipation
Nausea
Indigestion
Constipation
Nausea
Indigestion
Constipation
Nausea
  • View other providers who treat Nausea
Esophageal Ulcer
Intestinal Diverticulitis
Intestinal Diverticulosis
Irritable Bowel Syndrome
Pancreatitis
Dysphagia
Gallstones
Abdominal Pain
Colonoscopy
Diarrhea
  • View other providers who treat Diarrhea
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Gastroesophageal Reflux Disease (GERD)
Gastroptosis
Gas-Bloat Syndrome
Vomiting Disorders
Non-Alcoholic Fatty Liver Disease
Flexible Sigmoidoscopy
Rigid Proctosigmoidoscopy
Manometry
Intestinal Ulcer
Duodenal Polypectomy
Gastric Ulcer
Endoscopy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Inflammatory Bowel Disease
Gastritis
Gastrointestinal Bleeding
Hemorrhoids
Sigmoidoscopy
Intestinal Obstruction
Anemia
  • View other providers who treat Anemia
Diaphragmatic and Hiatal Hernia
Colorectal Polyp
Noninfectious Gastroenteritis and Colitis
Cirrhosis
Ulcerative Colitis
Barrett's Esophagus
Unexplained Weight Loss
Crohn's Disease
Duodenal Ulcer
Hepatitis C
Esophagitis
Enteritis
Hypokalemia
Diffuse Esophageal Spasm
Laparoscopic Removal of Stones from Biliary Tract
Esophageal Motility Disorders
Dehydration
Liver Damage from Alcohol
Anal or Rectal Pain
Ascites
  • View other providers who treat Ascites
Duodenitis
Esophageal Varices
Gastrointestinal Malabsorption
Gastroparesis
Acute Gastritis
Pancreas Surgeries
Alcoholic Cirrhosis
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Upper Digestive Tract Cancer
Eosinophilic Esophagitis
Neoplasm of Gastrointestinal Tract
Vitamin_Deficiency
Acidosis
  • View other providers who treat Acidosis
Actinic Keratosis
Acute Bronchitis
Acute Deep Vein Thrombosis (DVT)
Acute Pharyngitis
Acute Venous Embolism Thrombosis
Alcoholic Fatty Liver
Alcoholic Hepatitis
All Headaches (incl. Migraine)
Allergic Rhinitis
Anxiety
  • View other providers who treat Anxiety
Arthritis
Arthritis of the Elbow
Asthma
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Ataxia
  • View other providers who treat Ataxia
Atherosclerosis
Autoimmune Hepatitis
Back Pain
Bedsores
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Benign Chronic Pain Syndrome
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Biliary Cirrhosis
Bladder Infection
Blood in Urine (Hematuria)
Boerhaave's Syndrome
Bowel Strangulation
Bronchitis
Calcium Metabolism Disorders
Celiac Disease
Cellulitis
Chest Pain
Cholangitis
Chronic Gastritis
Chronic Pain
Colon Cancer
Congenital Anomaly Intestine
COPD (Chronic Obstructive Pulmonary Disease)
Cough
  • View other providers who treat Cough
Cyclical Vomiting
Cyclical Vomiting Syndrome
Deep Vein Thrombosis (DVT)
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Difficulty With Walking
Dizziness
Duodenal Cancer
Dysentery
Dyslipidemia
Eczema and Contact Dermatitis
Ehlers-Danlos Syndrome
Emphysema
Enlarged Prostate (BPH)
Esophageal Achalasia and Cardiospasm
Esophageal Diseases
Esophageal Diverticulum
Familial Adenomatous Polyposis
Fever
  • View other providers who treat Fever
Fibromyalgia
Gait Abnormality
Gastrointestinal Diseases
Gastrojejunal Ulcer
Gout
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Headache
  • View other providers who treat Headache
Heart Disease
Heartburn
Hemochromatosis
Hepatitis B
Hereditary Amyloidosis
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hydrocele
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Hypoxemia
Ileus
  • View other providers who treat Ileus
Infectious Diarrheal Disease
Insomnia
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Intertrigo
Intestinal Malabsorption Carbohydrate
Intestinal Prolapse
Iron Metabolism Disorders
Ischemic Colitis
Itchy Skin
Joint Pain
Lactose Intolerance
Leg and Foot Ulcers
Limb Pain
Limb Swelling
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Low Back Pain
Magnesium Metabolism Disorders
Malaise and Fatigue
Mallory-Weiss Syndrome
Malnutrition
Megacolon
Menstrual Disorders
Migraine
  • View other providers who treat Migraine
Mineral Metabolism Disorders
Muscle Weakness
Neurogenic Bladder
Non-Neonatal Jaundice
Nosebleed
Obesity
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Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteopenia
Osteoporosis
Overactive Bladder
Overweight
Pancreatic Pseudocyst
Pelvic Abscess
Peptic Ulcer
Pericardial Disease
Pernicious Anemia
Pharyngitis
Phosphorus Metabolism Disorders
Pneumonia
Pollen Allergy
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Proctoptosis
Pyloric Stenosis
Rash
  • View other providers who treat Rash
Raynaud's Disease
Rectal Prolapse
Rectal Ulcer
Reflux Esophagitis
Restless Leg Syndrome
Retroperitoneum Cancer
Sarcoidosis
Sclerosing Mesenteritis
Sexually Transmitted Diseases (STDs)
Shortness of Breath
Sinus Bradycardia
Sinus Tachycardia
Sleep Apnea
Splenomegaly
Stomach Diseases
Syphilis Infections
Thyroid Goiter
Tinnitus
  • View other providers who treat Tinnitus
Tobacco Use Disorder
Transient Ischemic Attack (TIA)
Ulcer
  • View other providers who treat Ulcer
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Vertigo
  • View other providers who treat Vertigo
Viral Enteritis
Viral Hepatitis
Vitamin B Deficiency
Vitamin B12 Anemia
Vitamin B12 Deficiency
Vitamin D Deficiency
Wheezing
  • View other providers who treat Wheezing
Yeast Infections
Anoscopy
  • View other providers who treat Anoscopy
Bile Duct Procedure
Capsule Endoscopy
Care Coordination for Complex Conditions and Procedures
Colon Cancer Screening
Colonoscopy With Polypectomy
Colorectal Cancer Screening
Electrocardiogram (EKG)
Fecal Impaction Removal
Fecal Occult Blood Test for Colorectal Cancer
Gallbladder Scan
Gastroenterology Procedures
Hemorrhoidectomy or Excision of Anal Tags
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Immunization Administration
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
Percutaneous Edoscopic Gastrostomy (PEG)
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • National (BlueCard) PPO
  • Commercial Insurance Company
  • Amerigroup (Wellpoint)
  • Geisinger Health Plan
  • United Healthcare
  • Carefirst Blue Cross Blue Shield
  • Curative EPO
    Curative PPO Plus
    Curative PPO
  • CoreSource
  • Humana
  • Cigna
  • Coventry Health Care
  • Assurant Health
  • Blue Cross and Blue Shield
  • MultiPlan PPO
  • Anthem Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • Mail Handlers Benefit Plan (MHBP)
  • Tricare
  • Amerihealth
  • Highmark Blue Cross Blue Shield
  • Aetna
  • Medicaid

Patient Satisfaction

Likelihood to recommend Dr. Parker III
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Jan 15, 2026
Dr. Parker is the best. He treated me four years ago but he had reviewed my previous visit and spoke with me as he had seen me in his office a day previously. He is a warm and genuine doctor who cares for his patients. He is a great doctor. 5 star rating from me.
— Jan 15, 2026
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Photo: Dr. Calvin Parker III, MD
How would you rate your experience with Dr. Calvin Parker III, MD?
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Dr. Parker III's Office & Staff

  • Ease of scheduling urgent appointments
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Parker III

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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About Me

Specialties*
Gastroenterology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Parker III communicate via email?
55 users said yes.
Yes
(55)
No
(9)
Does Dr. Parker III offer telehealth services or virtual visits?
43 users said yes.
Yes
(43)
No
(14)
Does Dr. Parker III offer an online patient portal?
68 users said yes.
Yes
(68)
No
(1)
Does Dr. Parker III have free onsite parking?
89 users said yes.
Yes
(89)
No
(1)
Does Dr. Parker III offer weekend visits?
11 users said yes.
Yes
(11)
No
(33)
Does Dr. Parker III offer evening visits?
20 users said yes.
Yes
(20)
No
(26)
Does Dr. Parker III specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Parker III specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Parker III specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Parker III specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Parker III accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Calvin Parker III, MD. To arrange an appointment, call the number on Dr. Parker III's profile.

Dr. Parker III frequently treats the following conditions: Indigestion, Constipation, Nausea, Esophageal Ulcer, Intestinal Diverticulitis, Intestinal Diverticulosis, Irritable Bowel Syndrome, Pancreatitis, Dysphagia, Gallstones and Abdominal Pain. See more on Sharecare.

Dr. Calvin Parker III, MD is affiliated with Northwest Hospital Center and Carroll Hospital Center.

Yes, Dr. Calvin Parker III, MD holds board certification in Gastroenterology.

Education
Medical Education
  • Howard University College of Medicine
    2004
Medical Education
Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Residency Hospital
  • Dwight D Eisenhower Medical Center
    2007
Residency Hospital
Fellowship Hospital
  • Brooke Army Medical Center
    2013
Fellowship Hospital

Hospital Affiliations

  • Northwest Hospital Center

    5401 Old Court Rd, Randallstown, MD

  • Carroll Hospital Center

    200 Memorial Ave, Westminster, MD

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