Accepting new patients

Dr. Marcia Peck, MD

Endocrinology, Diabetes & Metabolism ·  Female · Age 48

Dr. Peck
20101 Lake Chabot Rd Castro Valley, CA 94546

Make an Appointment

Show Phone Number

Dr. Marcia Peck, MD is an endocrinology, diabetes & metabolism specialist in Castro Valley, CA and has been practicing for 10 years. She graduated from University Of Chicago/The Pritzker School Of Medicine in 2000 and specializes in endocrinology, diabetes & metabolism.

Insurance Check

Search for your insurance provider

Dr. Peck accepts

Accepted insurance can change. Please double-check when making an appointment.

(510) 204-1844

Dr. Peck accepts the following insurance:

Aetna HMO
Choice Plus POS II
Blue Cross Blue Shield
Blue Card PPO
Blue Cross Blue Shield of California
Blue Cross Blue Shield of California PPO
Select Plus HMO
Cigna HMO
Cigna PPO
Open Access Plus
MultiPlan PPO
PHCS Network PPO

Background Check

No malpractice claims found for California
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Peck's experience treating your condition or procedure

Dr. Peck's Top Procedures and Conditions

Treatment Frequency
Diabetes With Renal Manifestations
very high
very high

Treatment Frequency

Dr. Peck treats Diabetes With Renal Manifestations more than 99% of her peers

Dr. Peck treats this condition more than 99% of her peers

very high
very high

Treatment Frequency

Dr. Peck treats Osteoporosis more than 95% of her peers

Dr. Peck treats this condition more than 95% of her peers

Rating Includes other areas of care:

  • Deficiency-Induced Osteoporosis
  • Disuse Osteoporosis
  • Drug-Induced Osteoporosis
  • Hyperthyroid Osteoporosis
  • Idiopathic Osteoporosis
  • Juvenile Osteoporosis
  • Osteoporosis Related to Cancer
  • Postmenopausal Osteoporosis
  • Pregnancy-Associated Osteoporosis
  • Primary Osteoporosis
  • Secondary Osteoporosis
  • Senile Osteoporosis
  • Transient Osteoporosis of Hip
Diabetes Type 2
very high
very high

Treatment Frequency

Dr. Peck treats Diabetes Type 2 more than 94% of her peers

Dr. Peck treats this condition more than 94% of her peers

Dr. Peck's conditions and procedures:

  • Abnormal Thyroid
  • Adrenal Gland Diseases
  • Adrenal Incidentaloma
  • Adrenal Insufficiency
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Benign Tumor
  • Bone Disorders
  • Breast Diseases
  • Calcium Metabolism Disorders
  • Cancer
  • Continuous Glucose Monitoring
  • Diabetes
  • Diabetes Counseling
  • Diabetes Insipidus
  • Diabetes Mellitus, Secondary
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Ketoacidosis
  • Female Infertility
  • Goiter
  • Graves' Disease
  • Growth Hormone Deficiency
  • Gynecomastia
  • Hashimoto's Disease
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hypoglycemia
  • Hypokalemia
  • Hypoparathyroidism
  • Hypopituitarism
  • Hyposmolality and Hyponatremia
  • Hypothyroidism
  • Kidney Disease
  • Lipid Disorders
  • Malaise and Fatigue
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Obesity
  • Osteopenia
  • Osteoporosis
  • Overweight
  • Parathyroid (Gland) Disease
  • Parathyroid (Gland) Tumor: Other than Malignant
  • Polycystic Ovarian Syndrome
  • Retina Diseases
  • Symptomatic Menopause
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Cyst
  • Thyroid Disease
  • Thyroid Fine Needle Aspiration Biopsy
  • Thyroiditis
  • Vitamin D Deficiency

About Me

Care Philosophy

My goal is to partner with patients to address their unique health care needs. I strive to educate my patients about their disease course and management so they feel empowered to make healthy decisions. I enjoy practicing endocrinology since it allows me to get to know my patients over time.


  • Endocrinology, Diabetes & Metabolism

Board Certifications

  • Diabetes, Metabolism & Endocrinology


Stanford University Hospital
Fellowship Hospital
Stanford University Hospital
Residency Hospital
University Of Chicago/The Pritzker School Of Medicine
Medical School
University Of California, Berkeley


  • Healthgrades Honor Roll
  • Alpha Omega Alpha Honor Society, 2000

Dr. Peck's Reviews

Likelihood to recommend Dr. Peck


Based on 9 reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Leave a review

How likely are you to recommend
Dr. Peck?
(Select your rating)
Average Reported Wait Time
  • 10 – 15 minutes
Dr. Peck's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Marcia Peck, MD
Dr. Peck has worked with me for the past five years and has tried many things to help me get my diabetes under control. Finally I am better. If I had done things she recommended sooner I would have been in better control sooner. Excellent practitioner.
Was this helpful?
thumbs up icon option
thumbs down icon option
×Post a ResponseAre you Dr. Marcia Peck, MD?

Leave a review

How was your experience with Dr. Peck?

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Peck treats patients.

Learn more

Eden Medical Center

Castro Valley, CA