Maryam Nemati, M.D.
NPI 1750872305ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Laguna Niguel, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Healthcare Partners Affiliates Medical Group, practicing in Laguna Niguel, California. Their prescriptions cost Medicare Part D more than their services did: $1,242,442 for 2,145 claims, against $14,384 paid for services in 2024. Insulet Corporation was the largest of 13 companies reporting payments in 2025, $1,497 in all, mostly food and beverage. Lists Providence Mission Hospital as a hospital affiliation.
Overview
| NPI | 1750872305 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 18, 2018 |
| Last updated in NPPES | Nov 24, 2025 |
| Certified by provider | Nov 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A186317 | 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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 48 |
|---|---|
| Services billed | 208 across 11 procedure codes |
| Paid by Medicare | $14,384 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,145 · 5,027 30-day fills |
|---|---|
| Patients | 310 |
| Total drug cost | $1,242,442 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Hospital affiliation
- Providence Mission HospitalMission Viejo, CA
Industry payments (Open Payments)
- 2025$1,497 · 43 payments from 13 companies
- 2024$369.28 · 16 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insulet Corporation | $360.04 | 7 |
| Novo Nordisk Inc | $226.78 | 8 |
| Amgen Inc. | $184.76 | 4 |
| Neurocrine Biosciences, Inc. | $155.39 | 1 |
| Lilly USA, LLC | $146.10 | 7 |
What the 2025 payments were for
- Food and Beverage$1,497 · 43 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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