Adam Jacob Kreitenberg, M.D.
NPI 1770857682ActiveIndividual· Internal Medicine, Rheumatology· Tarzana, CA
Internal Medicine, Rheumatology (M.D.) with Boris D Ratiner, MD, Inc, practicing in Tarzana, California. In 2024 Medicare paid $2,129,984 for 942 patients, and Part D covered 2,319 of their prescriptions, 77% of them generic. Janssen Biotech, Inc. was the largest of 26 companies reporting payments in 2025, $196,841 in all, mostly speaking and faculty fees. Lists Cedars-Sinai Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1770857682 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 24, 2012 |
| Last updated in NPPES | Jan 9, 2023 |
| Certified by provider | Jan 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | A122216 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 942 |
|---|---|
| Services billed | 129,079 across 130 procedure codes |
| Paid by Medicare | $2,129,984 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,319 · 4,184 30-day fills |
|---|---|
| Patients | 393 |
| Total drug cost | $2,631,061 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Boris D Ratiner, MD, IncTarzana, CA · 6 clinicians
Hospital affiliations
- Cedars-Sinai Medical CenterLos Angeles, CA
- Northridge Hospital Medical CenterNorthridge, CA
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA
- UCLA West Valley Medical CenterWest Hills, CA
Industry payments (Open Payments)
- 2025$196,841 · 471 payments from 26 companies
- 2024$176,583 · 536 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $102,227 | 160 |
| Astrazeneca Pharmaceuticals LP | $39,642 | 58 |
| Abbvie Inc. | $36,250 | 83 |
| Glaxosmithkline, LLC. | $14,726 | 26 |
| Alexion Pharmaceuticals, Inc. | $1,009 | 5 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$156,322 · 65 payments
- Travel and Lodging$25,406 · 84 payments
- Food and Beverage$8,250 · 317 payments
- Consulting Fee$6,863 · 4 payments
- Education$0.80 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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