Heidi A. Karon, MD
NPI 1144361155ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Laurel, MD
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Laurel, Maryland, trained at University of Maryland School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $1,227,913 for 2,719 claims, against $96,220 paid for services in 2024. Abbott Laboratories was the largest of 16 companies reporting payments in 2025, $555.67 in all, mostly food and beverage.
Overview
| NPI | 1144361155 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Feb 11, 2007 |
| Last updated in NPPES | Aug 18, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | D0067223 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 453 |
|---|---|
| Services billed | 2,156 across 30 procedure codes |
| Paid by Medicare | $96,220 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,719 · 7,439 30-day fills |
|---|---|
| Patients | 358 |
| Total drug cost | $1,227,913 |
| Generic share | 53% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Maryland Endocrine, P.A.Columbia, MD · 10 clinicians
Hospital affiliation
- Johns Hopkins Hospital, theBaltimore, MD
Industry payments (Open Payments)
- 2025$555.67 · 24 payments from 16 companies
- 2024$282.50 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $67.38 | 3 |
| Dexcom, Inc. | $57.80 | 2 |
| Ascendis Pharma Endocrinology Inc | $54.87 | 2 |
| Corcept Therapeutics | $53.85 | 2 |
| Abbvie Inc. | $45.58 | 2 |
What the 2025 payments were for
- Food and Beverage$555.67 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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