James Byron Tribe, M.D.
Hospitalist Physician · Pasadena, CA
James Byron Tribe, M.D. is a hospitalist physician with a practice address in Pasadena, California, and NPI 1659597334, issued on Apr 18, 2007. Check the license (California A104848, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Byron Tribe
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A104848 CA
Self-reported in NPPES; status is on the state search - Practice location
- 50 Bellefontaine St, Pasadena, CA 91105
- Phone
- (626) 352-1444
- Enumerated
- Apr 18, 2007
- Record last updated
- Mar 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090304000234); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 2005
- Entity
- Type 1 · individual
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Verify James Byron Tribe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A104848Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average hospitalist physician in 2024
375 Medicare Part D claims for 137 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 18 claims were for opioids.
Most prescribed
- Ondansetron Odt79 claims
- Cefdinir26 claims
- Furosemide13 claims
- Hydralazine Hcl13 claims
- Cefuroxime12 claims
- Amlodipine Besylate11 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 practice group's MIPS final score for 2023 (Medicare payment program): 80.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cedars-Sinai Medical Care FoundationPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Byron Tribe among 3,099 hospitalist physician records in California
James Byron Tribe, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 66% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2005 · median 2010 among the 2,505 with a school on file
- Record last updated2010 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Pasadena → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Alipasha Adrangui, M.D.Pasadena, CA 911051780911263
- Vaibhav Anvekar, M.D.Pasadena, CA 911051366548307
- Olga Garshyna, MDPasadena, CA 911051508040585
- Bahij Ghazal, M.D.Pasadena, CA 911051912180233
- Anil Hanuman, D,O.Pasadena, CA 911051023101813
- Imran KhanPasadena, CA 911051992908123
- Elizabeth Kovacs, MDPasadena, CA 911051104882067
- Jamen Kurtyka, MDPasadena, CA 911051245551647
Common questions
What is James Byron Tribe, M.D.'s NPI number?
James Byron Tribe, M.D.'s National Provider Identifier (NPI) is 1659597334, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Byron Tribe, M.D. located?
The NPPES record lists a practice address at 50 Bellefontaine St, Pasadena, CA, 91105. Phone: (626) 352-1444. Providers update this record themselves, so call before visiting.
How can I verify James Byron Tribe, M.D.'s license?
NPPES lists California license number A104848, 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 James Byron Tribe, M.D. prescribe under Medicare Part D?
In 2024, James Byron Tribe, M.D. had 375 Medicare Part D claims for 137 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is James Byron Tribe, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.5 of 100, reported for the practice group. 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.