Doctor profile · Federal record

Dr. Betty Tam, MD

Internal Medicine Physician (CMS: Internal Medicine) · Livermore, CA

  • NPI 1770532244
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1133 East Stanley Blvd, # 101
Livermore, CA 94550
(925) 454-4280
fax (925) 454-4284
Mailing address
5575 W Las Positas Blvd, Suite 130
Pleasanton, CA 94588

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
October 31, 2011
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A86417

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770532244. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
572
Distinct HCPCS
9
Medicare allowed
$81,916
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 236 114 $151
99215 Established patient office or other outpatient visit, 40-54 minutes 110 62 $207
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 62 62 $153
99213 Established patient office or other outpatient visit, 20-29 minutes 51 43 $107
G0008 Administration of influenza virus vaccine 34 34 $36
90662 Influenza vaccine split virus, preservative free 32 32 $72
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 18 12 $63
G0009 Administration of pneumococcal vaccine 17 17 $36
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 12 12 $282

In context: peer comparison

Among 2 peers in Livermore Internal Medicine Physician, average services per provider: 91. This provider delivers 6.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$15
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Exact Sciences Corporation 1 $14.99

By nature of payment

Food and Beverage
$15

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,020
Patients
305
Total drug cost
$15,648
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 169 53 $2,579
Losartan Potassium Generic 115 35 $1,911
Amlodipine Besylate Generic 113 39 $1,439
Levothyroxine Sodium Generic 93 34 $1,186
Lisinopril Generic 90 29 $719
Metformin Hcl Generic 72 22 $1,112
Sertraline Hcl Generic 61 14 $1,716
Alendronate Sodium Generic 49 16 $592
Escitalopram Oxalate Generic 43 12 $800
Gabapentin Generic 41 12 $1,338

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Betty Tam's medical specialty?
Dr. Betty Tam practices Internal Medicine Physician in Livermore, CA.
Where does Dr. Betty Tam practice?
Dr. Betty Tam practices at 1133 East Stanley Blvd, Livermore, CA 94550. Office phone: 9254544280.
What is Dr. Betty Tam's NPI?
Dr. Betty Tam's National Provider Identifier (NPI) is 1770532244, issued by NPPES.
Does Dr. Betty Tam accept Medicare assignment?
Yes. Dr. Betty Tam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Betty Tam commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.