David Friedman, MD
NPI 1477526895 · Hematology (Internal Medicine) Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Friedman, MD is a Hematology (Internal Medicine) Physician provider in San Antonio, TX (NPI 1477526895).
Provider details
- NPI number
- 1477526895
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- H5554 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
6,452 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 896 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 887 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 814 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 723 | $121 |
| Measurement of Immunoglobulin Light Chains83521 | 272 | $17 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 258 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 143 | 41 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 85 | 28 |
| Apixabanbrand: Eliquis | 78 | 18 |
| Prednisone | 72 | 23 |
| Dexamethasone | 69 | 22 |
| Rivaroxabanbrand: Xarelto | 66 | 15 |
| Acyclovir |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,202 across 39 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
- 2006-02-08
- Last updated
- 2021-04-22
- Certified
- 2021-04-22
Frequently asked questions
- What is David Friedman's NPI number?
- David Friedman's National Provider Identifier (NPI) is 1477526895, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Friedman's specialty?
- David Friedman is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is David Friedman located?
- David Friedman's practice location on file with NPPES is 5206 Research Dr, San Antonio, TX 78240-5251.
- What is David Friedman's phone number?
- The practice phone number listed in the NPPES registry for David Friedman is (210) 595-5300.
- Does David Friedman accept Medicare?
- David Friedman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Friedman's NPI active?
- Yes — David Friedman's NPI (1477526895) is active in the NPPES registry as of the last update on 2021-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.