Stuart Friedman, M.D.
NPI 1679585715 · Nephrology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stuart Friedman, M.D. is a Nephrology Physician provider in Los Angeles, CA (NPI 1679585715).
Provider details
- NPI number
- 1679585715
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G35132 (CA)
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
19 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
4,055 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 | 1,053 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 895 | $139 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 894 | $123 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 298 | $195 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 202 | $373 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 290 | 83 |
| Atorvastatin Calcium | 262 | 63 |
| Amlodipine Besylate | 239 | 70 |
| Levothyroxine Sodium | 191 | 48 |
| Losartan Potassium | 141 | 41 |
| Dapagliflozin Propanediolbrand: Farxiga | 138 | 31 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$644 across 20 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
- 2006-08-13
- Last updated
- 2014-08-14
Frequently asked questions
- What is Stuart Friedman's NPI number?
- Stuart Friedman's National Provider Identifier (NPI) is 1679585715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stuart Friedman's specialty?
- Stuart Friedman is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Stuart Friedman located?
- Stuart Friedman's practice location on file with NPPES is 8635 W 3rd St, Los Angeles, CA 90048-6101.
- What is Stuart Friedman's phone number?
- The practice phone number listed in the NPPES registry for Stuart Friedman is (310) 659-4320.
- Does Stuart Friedman accept Medicare?
- Stuart Friedman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stuart Friedman's NPI active?
- Yes — Stuart Friedman's NPI (1679585715) is active in the NPPES registry as of the last update on 2014-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.