Boris S. Arutyunov, M.D.
Hospitalist Physician · Pasadena, CA
Boris S. Arutyunov, M.D. is a hospitalist physician with a practice address in Pasadena, California, and NPI 1144562703, issued on Mar 21, 2013. Check the license (California A137892, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Boris S. Arutyunov
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A137892 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 W California Blvd, Pasadena, CA 91105
- Phone
- (626) 352-1444
- Enumerated
- Mar 21, 2013
- Record last updated
- Dec 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20151020000742); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 100 W California Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Devan Abhari, MDStudent in an Organized Health Care Education/Training Program1922849041
- Lina Acopians, DOHospitalist Physician1548821523
- Daniel Adran, MDNeuroradiology Physician1518456441
- Alipasha Adrangui, M.D.Hospitalist Physician1780911263
- Vahe Aghajanyan, M.D.Student in an Organized Health Care Education/Training Program1447047238
- Ignacio Aguilar, RNFARegistered Nurse First Assistant1497583603
Verify Boris S. Arutyunov in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A137892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average hospitalist physician in 2024
178 Medicare Part D claims for 79 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass11 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 5 group practices
- Cedars-Sinai Medical Care FoundationPasadena, CA
- Exer Medical CorporationCalabasas, CA
- Graybill Medical Group IncEscondido, CA
- Superior Hospitalist Medical Group IncLos Angeles, CA
- The Huntington Medical FoundationPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Boris S. Arutyunov among 3,099 hospitalist physician records in California
Boris S. Arutyunov, 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 2013, is newer than 56% of them.
- NPI issued2013 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2012 · median 2010 among the 2,505 with a school on file
- Record last updated2025 · 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 Boris S. Arutyunov, M.D.'s NPI number?
Boris S. Arutyunov, M.D.'s National Provider Identifier (NPI) is 1144562703, issued on Mar 21, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Boris S. Arutyunov, M.D. located?
The NPPES record lists a practice address at 100 W California Blvd, Pasadena, CA, 91105. Phone: (626) 352-1444. Providers update this record themselves, so call before visiting.
How can I verify Boris S. Arutyunov, M.D.'s license?
NPPES lists California license number A137892, 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 Boris S. Arutyunov, M.D. prescribe under Medicare Part D?
In 2024, Boris S. Arutyunov, M.D. had 178 Medicare Part D claims for 79 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Boris S. Arutyunov, 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.