Doctor profile · Federal record

Dr. Thomas Alan, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Family Medicine Physician · Davis, CA

  • NPI 1235115635
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2660 W Covell Blvd, Suite A
Davis, CA 956165645
(530) 747-3000
fax (530) 747-3080

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
June 12, 2020
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A85006 · California #A08506

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235115635. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,545
Distinct HCPCS
10
Medicare allowed
$119,657
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 595 321 $94
99213 Established patient office or other outpatient visit, 20-29 minutes 454 341 $79
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 101 101 $55
G0008 Administration of influenza virus vaccine 95 94 $33
90662 Influenza vaccine split virus, preservative free 92 91 $72
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 51 13 $1
G0009 Administration of pneumococcal vaccine 37 37 $33
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing 31 28 $7
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 25 25 $282
69209 Removal of impacted ear wax by washing 23 22 $21

In context: peer comparison

Among 3 peers in this city , average services per provider: 87. This provider delivers 18× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,641
Patients
911
Total drug cost
$144,752
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 416 142 $6,869
Levothyroxine Sodium Generic 306 90 $5,896
Amlodipine Besylate Generic 272 86 $2,371
Tamsulosin Hcl Generic 212 65 $3,823
Lisinopril Generic 210 77 $2,200
Gabapentin Generic 173 70 $3,682
Metformin Hcl Generic 170 57 $2,586
Losartan Potassium Generic 169 59 $3,019
Omeprazole Generic 135 52 $1,957
Simvastatin Generic 126 37 $1,689

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Alan's medical specialty?
Dr. Thomas Alan practices Internal Medicine Physician in Davis, CA.
Where does Dr. Thomas Alan practice?
Dr. Thomas Alan practices at 2660 W Covell Blvd, Davis, CA 956165645. Office phone: 5307473000.
What is Dr. Thomas Alan's NPI?
Dr. Thomas Alan's National Provider Identifier (NPI) is 1235115635, issued by NPPES.
Does Dr. Thomas Alan accept Medicare assignment?
Yes. Dr. Thomas Alan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Alan 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 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.