Cynthia MullenM.D.
Gastroenterology·Walnut Creek, CA
Cynthia Mullen, M.D. is a Gastroenterology provider in Walnut Creek, CA affiliated with 3 ambulatory surgery centers in CA, as of July 2026.
- NPI1013123140
- Registered2007
- Centers3
- StateCA
- Class of2003
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
- Bay Area Surgical Specialist Services LLCWalnut Creek, CA · ENT, Gastroenterology, General surgery, Pain management, Vascular · 27 on panelView center →
- Shadelands Advanced Endoscopy Institute INCWalnut Creek, CA · Gastroenterology · 5 on panelView center →
- Aspen Surgery Center LLC Dba Aspen Surgery CenterWalnut Creek, CA · Gastroenterology, General surgery, Ophthalmology, Plastic surgery, Urology · 30 on panelView center →
Education
Education on record as of August 2026.
Cynthia Mullen at a glance
- Provider
- Cynthia Mullen
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Walnut Creek, CA
- Medical school
- Tulane University School of Medicine
- Graduated
- 2003
- NPI registered
- 2007
- NPI
- 1013123140
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Cynthia Mullen practice?
Cynthia Mullen, M.D. is based in Walnut Creek, CA and is affiliated with 3 ambulatory surgery centers: Bay Area Surgical Specialist Services LLC in Walnut Creek, CA, Shadelands Advanced Endoscopy Institute INC in Walnut Creek, CA, and Aspen Surgery Center LLC Dba Aspen Surgery Center in Walnut Creek, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Cynthia Mullen's NPI number?
Cynthia Mullen's National Provider Identifier (NPI) is 1013123140, registered in 2007. Specialty on record: Gastroenterology; credential M.D.
Where did Cynthia Mullen go to medical school?
Cynthia Mullen, M.D. attended Tulane University School of Medicine, graduating in 2003.
How many Gastroenterology providers in California work at ambulatory surgery centers?
547 Gastroenterology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Cynthia Mullen among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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