Doctor profile · Federal record

Dr. Richard Lam, MD

Internal Medicine Physician (CMS: Internal Medicine) · Sun City, CA

  • NPI 1003830191
  • Accepts Medicare
  • MIPS 29.1 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
27994 Bradley RD, Suite C
Sun City, CA 925862240
(951) 679-6467
fax (951) 679-1500

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
February 13, 2008
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A061542
Medicaid
CA #00A615420

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003830191. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,148
Distinct HCPCS
6
Medicare allowed
$115,418
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 484 184 $92
99442 Telephone medical discussion with physician, 11-20 minutes 299 133 $67
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 172 172 $133
99214 Established patient office or other outpatient visit, 30-39 minutes 162 144 $131
99204 New patient office or other outpatient visit, 45-59 minutes 16 16 $172
99496 Transitional care management services for problem of high complexity 15 15 $256

In context: peer comparison

Among 7 peers in this city , average services per provider: 157. This provider delivers 7.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,334
Transactions
45
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 7 $199.56
Amgen Inc. 7 $158.15
Boehringer Ingelheim Pharmaceuticals, Inc. 4 $116.75
GlaxoSmithKline, LLC. 3 $94.89
Novo Nordisk Inc 4 $74.40
Sumitomo Pharma America, Inc. 3 $67.87
E.R. Squibb & Sons, L.L.C. 3 $64.02
Verity Pharmaceuticals Inc. 2 $62.86
Dexcom, Inc. 2 $60.06
SI-BONE, INC. 1 $51.13
Novartis Pharmaceuticals Corporation 2 $47.48
Collegium Pharmaceutical, Inc. 2 $41.05
Salix Pharmaceuticals, a division of Bausch Health US, LLC 2 $40.89
Kowa Pharmaceuticals America, Inc. 2 $34.48
Phathom Pharmaceuticals, Inc. 1 $29.93

By nature of payment

Food and Beverage
$1,334

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
7,726
Patients
2,057
Total drug cost
$122,010
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,247 351 $20,513
Losartan Potassium Generic 823 232 $13,423
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 763 166 $14,478
Metoprolol Succinate Generic 673 184 $15,203
Levothyroxine Sodium Generic 613 137 $12,249
Amlodipine Besylate Generic 602 171 $5,989
Metformin Hcl Generic 471 128 $6,628
Omeprazole Generic 401 107 $6,894
Alprazolam Generic 348 64 $1,519
Gabapentin Generic 320 84 $6,664

Frequently asked questions

Auto-generated from federal data
What is Dr. Richard Lam's medical specialty?
Dr. Richard Lam practices Internal Medicine Physician in Sun City, CA.
Where does Dr. Richard Lam practice?
Dr. Richard Lam practices at 27994 Bradley RD, Sun City, CA 925862240. Office phone: 9516796467.
What is Dr. Richard Lam's NPI?
Dr. Richard Lam's National Provider Identifier (NPI) is 1003830191, issued by NPPES.
Does Dr. Richard Lam accept Medicare assignment?
Yes. Dr. Richard Lam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Lam commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Telephone medical discussion with physician (HCPCS 99442); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.