Isaac Anthony Bartley, M.D.
Gastroenterology Physician · Glendale, CA
Isaac Anthony Bartley, M.D. is a gastroenterology physician with a practice address in Glendale, California, and NPI 1710088729, issued on Sep 25, 2006. Check the license (California G50351, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Isaac Anthony Bartley
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G50351 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1560 E Chevy Chase Dr Ste 225, Glendale, CA 91206
- Phone
- (818) 956-7507
- Enumerated
- Sep 25, 2006
- Record last updated
- Jan 15, 2025
- Fax
- (818) 217-8190
- Medicare enrollment
- Enrolled (PECOS I20130312000319); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Verify Isaac Anthony Bartley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50351Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average gastroenterology physician in 2024
529 Medicare Part D claims for 200 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf104 claims
- Omeprazole100 claims
- Pantoprazole Sodium82 claims
- Creon27 claims
- Mesalamine21 claims
- Lansoprazole15 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.
The MIPS final score for 2023 (Medicare payment program): 19.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Isaac Anthony Bartley among 2,140 gastroenterology physician records in California
Isaac Anthony Bartley, M.D. 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
- Graduated1982 · median 2002 among the 1,538 with a school on file
- Record last updated2025 · 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.
All 2,140 in California → Every provider in Glendale → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Frederick Boghossian, M.D.Glendale, CA 912061841303849
- James Tabibian, M.D.Glendale, CA 912061831356732
- Avedis Tavitian, M.D.Glendale, CA 912051730144759
- Ara Tavitian, MDGlendale, CA 912051922063759
- Zaree Babakhanian, M.D.Glendale, CA 912081194055640
- Mehdi Khorsandi, M.D.Glendale, CA 912041588607691
- Michael Klein, MDGlendale, CA 912081033205273
- Edgar Mehdikhani, MDGlendale, CA 912041962680348
Common questions
What is Isaac Anthony Bartley, M.D.'s NPI number?
Isaac Anthony Bartley, M.D.'s National Provider Identifier (NPI) is 1710088729, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Isaac Anthony Bartley, M.D. located?
The NPPES record lists a practice address at 1560 E Chevy Chase Dr Ste 225, Glendale, CA, 91206. Phone: (818) 956-7507. Providers update this record themselves, so call before visiting.
How can I verify Isaac Anthony Bartley, M.D.'s license?
NPPES lists California license number G50351, 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 Isaac Anthony Bartley, M.D. prescribe under Medicare Part D?
In 2024, Isaac Anthony Bartley, M.D. had 529 Medicare Part D claims for 200 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Isaac Anthony Bartley, M.D.'s MIPS final score?
The 2023 MIPS final score is 19.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.