Ronald Lang, M.D.
NPI 1639230550 · Nephrology Physician · West Hollywood, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Lang, M.D. is a Nephrology Physician provider in West Hollywood, CA (NPI 1639230550).
Provider details
- NPI number
- 1639230550
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G42331 (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
8,018 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,131 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 979 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 979 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 973 | $10 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 750 | $133 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 168 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 550 | 75 |
| Famotidine | 497 | 67 |
| Losartan Potassium | 325 | 47 |
| Amlodipine Besylate | 301 | 43 |
| Levothyroxine Sodium | 259 | 33 |
| Omeprazole | 240 | 38 |
| Tamsulosin Hcl | 228 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$163 across 6 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
- 2006-12-13
- Last updated
- 2014-05-13
Frequently asked questions
- What is Ronald Lang's NPI number?
- Ronald Lang's National Provider Identifier (NPI) is 1639230550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Lang's specialty?
- Ronald Lang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Lang located?
- Ronald Lang's practice location on file with NPPES is 8737 Beverly Blvd, West Hollywood, CA 90048-1828.
- What is Ronald Lang's phone number?
- The practice phone number listed in the NPPES registry for Ronald Lang is (323) 525-1111.
- Does Ronald Lang accept Medicare?
- Ronald Lang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Lang's NPI active?
- Yes — Ronald Lang's NPI (1639230550) is active in the NPPES registry as of the last update on 2014-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.