Benjamin Kretzmann, M.D.
Rheumatology Physician · Los Angeles, CA
Benjamin Kretzmann, M.D. is a rheumatology physician with a practice address in Los Angeles, California, and NPI 1881824399, issued on Jul 17, 2009. Check the license (California A116280, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Benjamin Kretzmann
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A116280 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Beverly Blvd RM 5512, Los Angeles, CA 90048
- Phone
- (310) 423-5161
- Enumerated
- Jul 17, 2009
- Record last updated
- Feb 28, 2022
- Medicare enrollment
- Enrolled (PECOS I20140804000357); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Verify Benjamin Kretzmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A116280Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average rheumatology physician in 2024
905 Medicare Part D claims for 189 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 36 claims were for opioids.
Most prescribed
- Duloxetine Hcl111 claims
- Gabapentin88 claims
- Leflunomide69 claims
- Hydroxychloroquine Sulfate58 claims
- Celecoxib42 claims
- Prednisone38 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): 100 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).
Industry payments in 2024: $87.83
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Center For Rheumatology Medical CorporationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Kretzmann among 926 rheumatology physician records in California
Benjamin Kretzmann, M.D. is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2003 among the 641 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Los Angeles → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Francesco Boin, M.D.West Hollywood, CA 900481417908229
- Lindsy Forbess, MDLos Angeles, CA 900481972764116
- Elizabeth Frame, M.D.West Hollywood, CA 900481912094434
- Elayne Garber, MDLos Angeles, CA 900481508960840
- Jon Giles, M.D.Los Angeles, CA 900481679511810
- Arash Horizon, M.D.Los Angeles, CA 900481881694131
- Mariko Ishimori, M.D.Los Angeles, CA 900481487606695
- Judy Maddox, DOWest Hollywood, CA 900481235349671
Common questions
What is Benjamin Kretzmann, M.D.'s NPI number?
Benjamin Kretzmann, M.D.'s National Provider Identifier (NPI) is 1881824399, issued on Jul 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Kretzmann, M.D. located?
The NPPES record lists a practice address at 8700 Beverly Blvd RM 5512, Los Angeles, CA, 90048. Phone: (310) 423-5161. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Kretzmann, M.D.'s license?
NPPES lists California license number A116280, 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 Benjamin Kretzmann, M.D. prescribe under Medicare Part D?
In 2024, Benjamin Kretzmann, M.D. had 905 Medicare Part D claims for 189 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Benjamin Kretzmann, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.