Marshall Rowen, M.D.
Diagnostic Radiology Physician · Orange, CA
Marshall Rowen, M.D. is a diagnostic radiology physician with a practice address in Orange, California, and NPI 1497754907, issued on Jul 18, 2005. Check the license (California A16470, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marshall Rowen
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A16470 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1201 W LA Veta Ave, Orange, CA 92868
- Phone
- (714) 771-8370
- Enumerated
- Jul 18, 2005
- Record last updated
- Aug 15, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (714) 771-8374
- Medicaid ID
- 00A164700 CA
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 1201 W LA Veta Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah AbbamontoClinical Social Worker1396268553
- Yesenia Acosta, ACSWClinical Social Worker1114744513
- Natalie Adame, PNPPrimary Care Nurse Practitioner1750993622
- David Adams, M.D.Neurology with Special Qualifications in Child Neurology Physician1497109722
- William Adelman, M.D.Pediatric Adolescent Medicine Physician1831191386
- Isela Aguirre Verdugo, LCSWClinical Social Worker1316465834
Verify Marshall Rowen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A16470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024
24 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D.
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.
Marshall Rowen among 4,500 diagnostic radiology physician records in California
Marshall Rowen, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2008 · 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 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
122 diagnostic radiology physician records list a practice address in Orange
They are 122 of the 13,245 NPPES records with a practice address in Orange, and 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Orange → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Elizabeth Cambray-Forker, D.O.Orange, CA 928681295734838
- Michael Forino, M.D.Orange, CA 928681891794319
- David Karlin, M.D.Orange, CA 928681477552016
- Paul Kupperstein, D.O.Orange, CA 928681679572218
- Mark Masotto, M.D.Orange, CA 928681033118336
- Stanley Nakamoto, M.D.Orange, CA 928681285633784
- Kurt Openshaw, M.D.Orange, CA 928681881693174
- Barry Paull, M.D.Orange, CA 928681982603486
Common questions
What is Marshall Rowen, M.D.'s NPI number?
Marshall Rowen, M.D.'s National Provider Identifier (NPI) is 1497754907, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marshall Rowen, M.D. located?
The NPPES record lists a practice address at 1201 W LA Veta Ave, Orange, CA, 92868. Phone: (714) 771-8370. Providers update this record themselves, so call before visiting.
How can I verify Marshall Rowen, M.D.'s license?
NPPES lists California license number A16470, 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 Marshall Rowen, M.D. prescribe under Medicare Part D?
In 2024, Marshall Rowen, M.D. had 24 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.