Murugesan M. Siddhappan, MD
NPI 1104096437ActiveIndividual· Family Medicine· Denton, TX
Family Medicine (MD) in Denton, Texas, licensed in TX and OK, with an NPI issued in March 2008. Their prescriptions cost Medicare Part D more than their services did: $1,095,704 for 11,041 claims, against $111,301 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 11 companies reporting payments in 2025, $371.32 in all, mostly food and beverage. Lists Medical City Denton and 1 other hospital as hospital affiliations.
Overview
| NPI | 1104096437 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 3, 2008 |
| Last updated in NPPES | Jan 10, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | N1756 | TX |
| Family Medicine | 207Q00000X | 26015 | OK |
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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 213 |
|---|---|
| Services billed | 2,302 across 32 procedure codes |
| Paid by Medicare | $111,301 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,041 · 19,874 30-day fills |
|---|---|
| Patients | 403 |
| Total drug cost | $1,095,704 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Hospital affiliations
- Medical City DentonDenton, TX
- Texas Health Presbyterian Hospital DentonDenton, TX
Other facilities
- Dfw Home HealthHome health agency · Denton, TX
- Renew Home HealthHome health agency · Denton, TX
- Harris Hospice IncHospice · Lewisville, TX
Industry payments (Open Payments)
- 2025$371.32 · 16 payments from 11 companies
- 2024$388.55 · 19 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $98.60 | 5 |
| Astellas Pharma US Inc | $68.99 | 1 |
| Novo Nordisk Inc | $40.34 | 2 |
| Corcept Therapeutics | $30.85 | 1 |
| Exact Sciences Corporation | $22.18 | 1 |
What the 2025 payments were for
- Food and Beverage$302.33 · 15 payments
- Education$68.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 105 family medicine physicians in Denton · All family medicine physicians in Texas