NPPES file of Aug 9, 2026

Stephanie Diane Gillis, M.D.

Anesthesiology Physician · Greenbrae, CA

Stephanie Diane Gillis, M.D. is an anesthesiology physician with a practice address in Greenbrae, California, and NPI 1871988436, issued on Mar 31, 2015. Check the license (California A143737, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871988436
Name
Stephanie Diane Gillis
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A143737 CA
Self-reported in NPPES; status is on the state search
Practice location
250 Bon Air RD, Greenbrae, CA 94904
Phone
(415) 925-7100
Enumerated
Mar 31, 2015
Record last updated
Jul 2, 2024
Fax
(903) 787-5854
Medicare enrollment
Enrolled (PECOS I20240725000401); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 250 Bon Air RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lisa Abrahams, MFTMarriage & Family Therapist1184738445
  2. Jory Adam, PA-CSurgical Physician Assistant1922269521
  3. Samuel Adams, MDHospitalist Physician1497785034
  4. Barbara Addleman, RNRegistered Nurse1053551267
  5. Linda Alexander, RNPsychiatric/Mental Health Registered Nurse1205589405
  6. Maxwell AlikinneyCounselor1538668728

Verify Stephanie Diane Gillis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A143737
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $28.35

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephanie Gillis$28.35
  2. Specialty average$669.59

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Anesthesiology Consultants OF MarinGreenbrae, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephanie Diane Gillis among 7,571 anesthesiology physician records in California

Stephanie Diane Gillis, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.

  • NPI issued2015 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2015 · median 2006 among the 4,868 with a school on file
  • Record last updated2024 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 anesthesiology physician records list a practice address in Greenbrae

They are 46 of the 727 NPPES records with a practice address in Greenbrae, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. T Benson, M.D.Greenbrae, CA 949041720016637
  2. James Brandes, M.D.Greenbrae, CA 949041417985334
  3. Keith Chamberlin, M.D.Greenbrae, CA 949041265544654
  4. Anthony Chiu, M.D.Greenbrae, CA 949041437269495
  5. Christophe Dinello, M.D.Greenbrae, CA 949041730270620
  6. Benjamin Hu, MDGreenbrae, CA 949041487691143
  7. Sonali Joshi, MDGreenbrae, CA 949041639281751
  8. Patrick Kwan, M.D.Greenbrae, CA 949041164468286

Common questions

What is Stephanie Diane Gillis, M.D.'s NPI number?

Stephanie Diane Gillis, M.D.'s National Provider Identifier (NPI) is 1871988436, issued on Mar 31, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Diane Gillis, M.D. located?

The NPPES record lists a practice address at 250 Bon Air RD, Greenbrae, CA, 94904. Phone: (415) 925-7100. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Diane Gillis, M.D.'s license?

NPPES lists California license number A143737, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.