NPPES file of Aug 9, 2026

Stephen L. Moff, MD

Gastroenterology Physician · Santa Clara, CA

Stephen L. Moff, MD is a gastroenterology physician with a practice address in Santa Clara, California, and NPI 1093892945, issued on Oct 31, 2006. Check the license (California A78482, 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
1093892945
Name
Stephen L. Moff
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A78482 CA
Self-reported in NPPES; status is on the state search
Practice location
710 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-1000
Enumerated
Oct 31, 2006
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A784820 CA
Medicare enrollment
Enrolled (PECOS I20050831000536); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 1999
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 710 Lawrence Expy

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

  1. Iype Abraham, M.D.Internal Medicine Physician1578737243
  2. Oren Abramson, MDPediatric Gastroenterology Physician1265511307
  3. Jamie Adiarte, PA-CPhysician Assistant1073824413
  4. Sarah Adut, PHDClinical Psychologist1609484831
  5. Najla Ahmadzia, M.D.Student in an Organized Health Care Education/Training Program1568692580
  6. Farhana Ahmed, MDHospitalist Physician1215110002

Verify Stephen L. Moff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A78482
    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

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36% fewer Medicare Part D claims than the average gastroenterology physician in 2024

523 Medicare Part D claims for 321 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Stephen Moff523
  2. Specialty average811

Most prescribed

  1. Gavilyte-C238 claims
  2. Mesalamine50 claims
  3. Budesonide Dr32 claims
  4. Metoclopramide Hcl19 claims
  5. Ondansetron Hcl13 claims
  6. Alosetron Hcl11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $43.34

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Moff$43.34
  2. Specialty average$5,015.95

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. Permanente Medical Group IncSanta Clara, CA

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

Stephen L. Moff among 2,140 gastroenterology physician records in California

Stephen L. Moff, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 48% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1999 · median 2002 among the 1,538 with a school on file
  • Record last updated2021 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Michael Ahn, MDSanta Clara, CA 950511225115173
  2. Krisna Chai, M.D.Santa Clara, CA 950511013007202
  3. Caitlin Doan, MDSanta Clara, CA 950511285711135
  4. Spencer Fung, MDSanta Clara, CA 950511669559506
  5. Cary Kraft, M.D.Santa Clara, CA 950511740643493
  6. Dan Li, M.D.Santa Clara, CA 950511871757153
  7. Joanna Ready, MDSanta Clara, CA 950511649357583
  8. Atenodoro Ruiz, MDSanta Clara, CA 950511154408003

Common questions

What is Stephen L. Moff, MD's NPI number?

Stephen L. Moff, MD's National Provider Identifier (NPI) is 1093892945, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen L. Moff, MD located?

The NPPES record lists a practice address at 710 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-1000. Providers update this record themselves, so call before visiting.

How can I verify Stephen L. Moff, MD's license?

NPPES lists California license number A78482, 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.

How much does Stephen L. Moff, MD prescribe under Medicare Part D?

In 2024, Stephen L. Moff, MD had 523 Medicare Part D claims for 321 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

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.