Daniel Nathan Berger, MD
NPI 1669407680ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Goleta, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Goleta, California, trained at University of California, Geffen School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $2,990,895 for 7,206 claims, against $526,585 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $63,475 in all, mostly speaking and faculty fees.
Overview
| NPI | 1669407680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | Sep 15, 2026 |
| Certified by provider | Sep 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | G79192 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,173 |
|---|---|
| Services billed | 33,593 across 24 procedure codes |
| Paid by Medicare | $526,585 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,206 · 17,171 30-day fills |
|---|---|
| Patients | 918 |
| Total drug cost | $2,990,895 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Sansum ClinicSanta Barbara, CA · 320 clinicians
Hospital affiliations
- French Hospital Medical CenterSan Luis Obispo, CA
- Goleta Valley Cottage HospitalSanta Barbara, CA
- Marian Regional Medical CenterSanta Maria, CA
- Ridgecrest Regional HospitalRidgecrest, CA
- Santa Ynez Valley Cottage HospitalSolvang, CA
Industry payments (Open Payments)
- 2025$63,475 · 145 payments from 12 companies
- 2024$52,232 · 77 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $37,291 | 29 |
| Abbott Laboratories | $15,980 | 43 |
| Dexcom, Inc. | $8,392 | 12 |
| Xeris Pharmaceuticals, Inc. | $913.79 | 35 |
| Sequel Med Tech, LLC | $341.72 | 13 |
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$31,742 · 13 payments
- Compensation for serving as faculty or as a speaker for a medical education program$17,323 · 16 payments
- Travel and Lodging$10,641 · 21 payments
- Food and Beverage$3,717 · 93 payments
- Education$32.27 · 1 payment
- Long term medical supply or device loan$19.98 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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