John B. Holden, MD
Diagnostic Ultrasound Physician · Pasadena, CA
John B. Holden, MD is a diagnostic ultrasound physician with a practice address in Pasadena, California, and NPI 1033125414, issued on Jul 31, 2006. Check the license (California G56141, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John B. Holden
- Credential
- MD
- Primary taxonomy
- Diagnostic Ultrasound Physician 2085U0001X
- License number
- G56141 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 W California Blvd, Pasadena, CA 91105
- Phone
- (626) 397-2139
- Enumerated
- Jul 31, 2006
- Record last updated
- Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G561410 CA
- Medicare enrollment
- Enrolled (PECOS I20051110000819); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1983
- Entity
- Type 1 · individual
8 nearest diagnostic ultrasound physician records → All 75 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 John B. Holden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 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
- Sutter Valley Medical FoundationRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John B. Holden among 75 diagnostic ultrasound physician records in California
John B. Holden, MD is one of 75 diagnostic ultrasound physician records with a practice address in California. 19% 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, 63% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Record last updated2007 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085U0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Ultrasound Physician providers in California
There are 75 diagnostic ultrasound physician records in California.
All 75 in California → Every provider in Pasadena → Diagnostic Ultrasound Physician nationwide →
The 8 diagnostic ultrasound physician records with the nearest ZIP codes
- Kevin Kelly, MEDICAL DOCTORPasadena, CA 911051942299912
- Irina Mkrtycheva, RDMSGlendale, CA 912021386353985
- Syuzanna Arakelyan, RDMSGlendale, CA 912051508636424
- Taguhi KeshishianGlendale, CA 912061134668601
- Christina Wade, MDGlendale, CA 912081235205543
- Tatevik BalasanyanSherwood Forest, CA 913251194392076
- Puja Parikh, ARDMSArleta, CA 913311942798699
- Elena KoganReseda, CA 913351033391065
Common questions
What is John B. Holden, MD's NPI number?
John B. Holden, MD's National Provider Identifier (NPI) is 1033125414, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John B. Holden, MD located?
The NPPES record lists a practice address at 100 W California Blvd, Pasadena, CA, 91105. Phone: (626) 397-2139. Providers update this record themselves, so call before visiting.
How can I verify John B. Holden, MD's license?
NPPES lists California license number G56141, 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.
What is John B. Holden, MD's MIPS final score?
The 2023 MIPS final score is 87.7 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.