Roy B. Blumenstrauch, M.D.
Specialist · Torrance, CA
Roy B. Blumenstrauch, M.D. is a specialist with a practice address in Torrance, California, and NPI 1639175409, issued on Jun 24, 2005. Check the license (California G54548, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Roy B. Blumenstrauch
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G54548 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4201 Torrance Blvd, Torrance, CA 90503
- Phone
- (310) 543-4444
- Enumerated
- Jun 24, 2005
- Record last updated
- Nov 27, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (310) 543-4446
- Medicare enrollment
- Enrolled (PECOS I20080609000396); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 4201 Torrance Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roy B. Blumenstrauch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G54548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average specialist in 2024
1,194 Medicare Part D claims for 500 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Triamcinolone Acetonide315 claims
- Doxycycline Hyclate114 claims
- Hydrocortisone110 claims
- Clobetasol Propionate103 claims
- Ketoconazole83 claims
- Levocetirizine Dihydrochloride43 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $214.79
9 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Csi Medical GroupTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
Other specialist records in California
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- Mai Abe, LESanta Monica, CA1609405158
- Hamid Abedi, HEARING AID SPECIALISan Diego, CA1659410744
- Jonas AbellaSan Francisco, CA1679760938
- Shreedhar Abhyankar, M.D.Indio, CA1861530669
- Elaine AbichRiverside, CA1780458927
- Mussarat Abidi, MDLadera Ranch, CA1053307769
Common questions
What is Roy B. Blumenstrauch, M.D.'s NPI number?
Roy B. Blumenstrauch, M.D.'s National Provider Identifier (NPI) is 1639175409, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Roy B. Blumenstrauch, M.D. located?
The NPPES record lists a practice address at 4201 Torrance Blvd, Torrance, CA, 90503. Phone: (310) 543-4444. Providers update this record themselves, so call before visiting.
How can I verify Roy B. Blumenstrauch, M.D.'s license?
NPPES lists California license number G54548, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Roy B. Blumenstrauch, M.D. prescribe under Medicare Part D?
In 2024, Roy B. Blumenstrauch, M.D. had 1,194 Medicare Part D claims for 500 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Roy B. Blumenstrauch, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.