Richard Lam, MD
NPI 1003830191 · Internal Medicine Physician · Sun City, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Lam, MD is a Internal Medicine Physician provider in Sun City, CA (NPI 1003830191).
Provider details
- NPI number
- 1003830191
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A061542 (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
1,366 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 466 | $90 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 218 | $90 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 189 | $62 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 187 | $128 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 164 | $127 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 221 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,152 | 339 |
| Losartan Potassium | 814 | 227 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 645 | 141 |
| Metoprolol Succinate | 570 | 172 |
| Amlodipine Besylate | 569 | 166 |
| Levothyroxine Sodium | 556 | 134 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,334 across 54 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
- 2006-07-26
- Last updated
- 2008-02-13
Frequently asked questions
- What is Richard Lam's NPI number?
- Richard Lam's National Provider Identifier (NPI) is 1003830191, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Lam's specialty?
- Richard Lam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Lam located?
- Richard Lam's practice location on file with NPPES is 27994 Bradley Rd, Sun City, CA 92586-2240.
- What is Richard Lam's phone number?
- The practice phone number listed in the NPPES registry for Richard Lam is (951) 679-6467.
- Does Richard Lam accept Medicare?
- Richard Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Lam's NPI active?
- Yes — Richard Lam's NPI (1003830191) is active in the NPPES registry as of the last update on 2008-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.