Robert Mcmahon, MD
NPI 1346811080 · Internal Medicine Physician · Omaha, NE
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Mcmahon, MD is a Internal Medicine Physician provider in Omaha, NE (NPI 1346811080).
Provider details
- NPI number
- 1346811080
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9084 (NE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 52 | 20 |
| Methotrexate Sodiumbrand: Methotrexate | 40 | 20 |
| Hydroxychloroquine Sulfate | 19 | 12 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 | — |
| Tocilizumabbrand: Actemra Actpen | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-07-04
- Last updated
- 2021-07-04
- Certified
- 2021-07-04
Frequently asked questions
- What is Robert Mcmahon's NPI number?
- Robert Mcmahon's National Provider Identifier (NPI) is 1346811080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Mcmahon's specialty?
- Robert Mcmahon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Mcmahon located?
- Robert Mcmahon's practice location on file with NPPES is 7710 Mercy Rd Ste 202, Omaha, NE 68124-2353.
- What is Robert Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Robert Mcmahon is (402) 280-4392.
- Does Robert Mcmahon accept Medicare?
- Robert Mcmahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Mcmahon's NPI active?
- Yes — Robert Mcmahon's NPI (1346811080) is active in the NPPES registry as of the last update on 2021-07-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.