Irene Feldman, M.D.
NPI 1851330559 · Endocrinology, Diabetes & Metabolism Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irene Feldman, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Bethesda, MD (NPI 1851330559).
Provider details
- NPI number
- 1851330559
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0046734 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,773 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 738 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 408 | $100 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 279 | $69 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 112 | $53 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 70 | $144 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 383 | 90 |
| Tirzepatidebrand: Mounjaro | 307 | 49 |
| Metformin Hcl | 304 | 81 |
| Atorvastatin Calcium | 250 | 63 |
| Amlodipine Besylate | 206 | 56 |
| Rosuvastatin Calcium | 189 | 49 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$148 across 5 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
- 2006-06-06
- Last updated
- 2009-08-06
Frequently asked questions
- What is Irene Feldman's NPI number?
- Irene Feldman's National Provider Identifier (NPI) is 1851330559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irene Feldman's specialty?
- Irene Feldman is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Irene Feldman located?
- Irene Feldman's practice location on file with NPPES is 5225 Pooks Hill Rd, Bethesda, MD 20814-2052.
- What is Irene Feldman's phone number?
- The practice phone number listed in the NPPES registry for Irene Feldman is (301) 897-8550.
- Does Irene Feldman accept Medicare?
- Irene Feldman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irene Feldman's NPI active?
- Yes — Irene Feldman's NPI (1851330559) is active in the NPPES registry as of the last update on 2009-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.