Adam Jacob Kreitenberg, M.D.
Rheumatology Physician · Tarzana, CA
Adam Jacob Kreitenberg, M.D. is a rheumatology physician with a practice address in Tarzana, California, and NPI 1770857682, issued on Feb 24, 2012. Check the license (California A122216, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Adam Jacob Kreitenberg
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A122216 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18386 Ventura Blvd, Tarzana, CA 91356
- Phone
- (818) 996-4077
- Enumerated
- Feb 24, 2012
- Record last updated
- Jan 9, 2023
- Fax
- (818) 996-4069
- Medicare enrollment
- Enrolled (PECOS I20150708002308); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 18386 Ventura Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Beata LyashevskaPhysical Therapist1740682053
- Jenny Oh, M.D.Rheumatology Physician1386657856
- Boris Ratiner, M.D.Rheumatology Physician1821001496
- Yana Ratiner, PHYSICAL THERAPISTPhysical Therapist1316214091
Verify Adam Jacob Kreitenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A122216Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average rheumatology physician in 2024
2,319 Medicare Part D claims for 393 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 169 claims were for opioids.
Most prescribed
- Prednisone175 claims
- Gabapentin174 claims
- Methotrexate136 claims
- Hydroxychloroquine Sulfate116 claims
- Tramadol Hcl107 claims
- Leflunomide69 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): 94.4 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: $176,477.01
529 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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
- Boris D Ratiner, MD, IncTarzana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Jacob Kreitenberg among 926 rheumatology physician records in California
Adam Jacob Kreitenberg, 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 2012, is newer than 71% of them.
- NPI issued2012 · 71% of these records are older, 25% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2010 · median 2003 among the 641 with a school on file
- Record last updated2023 · 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 Tarzana → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Albert Katz, M.D.Tarzana, CA 913561699737932
- Jenny Oh, M.D.Tarzana, CA 913561386657856
- Boris Ratiner, M.D.Tarzana, CA 913561821001496
- Ramandeep Bains, M.D.Valencia, CA 913551215369319
- Catherine Finney, M.D.Valencia, CA 913551922263474
- Howard Van Gelder, MDValencia, CA 913551932343829
- Aelita Khachatrian, MDThousand Oaks, CA 913601306137476
- Elvira Lindwall, M.D.Thousand Oaks, CA 913601881890713
Common questions
What is Adam Jacob Kreitenberg, M.D.'s NPI number?
Adam Jacob Kreitenberg, M.D.'s National Provider Identifier (NPI) is 1770857682, issued on Feb 24, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Adam Jacob Kreitenberg, M.D. located?
The NPPES record lists a practice address at 18386 Ventura Blvd, Tarzana, CA, 91356. Phone: (818) 996-4077. Providers update this record themselves, so call before visiting.
How can I verify Adam Jacob Kreitenberg, M.D.'s license?
NPPES lists California license number A122216, 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 Adam Jacob Kreitenberg, M.D. prescribe under Medicare Part D?
In 2024, Adam Jacob Kreitenberg, M.D. had 2,319 Medicare Part D claims for 393 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Adam Jacob Kreitenberg, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.4 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.