Robert Feferman, MD
NPI 1154479210 · Specialist · Irving, TX
Enrolled with Medicare as Order and Referring Only - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1154479210
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- K4057 (TX)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 246 | 57 |
| Progesterone, Micronizedbrand: Progesterone | 212 | 49 |
| Alprazolam | 108 | 27 |
| Estradiolbrand: Estradiol (twice Weekly) | 106 | 34 |
| Levothyroxine Sodiumbrand: Synthroid | 80 | 17 |
| Tirzepatidebrand: Mounjaro | 72 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,067 across 70 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2017-01-03
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.