Doctor profile · Federal record

Dr. Garth Oliver, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · West Haven, CT

  • NPI 1285673145
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
603 Savin Ave
West Haven, CT 065164933
(203) 932-2400
fax (203) 932-2401

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #035510

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285673145. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
356
Distinct HCPCS
6
Medicare allowed
$42,305
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 150 64 $135
99215 Established patient office or other outpatient visit, 40-54 minutes 73 43 $189
99213 Established patient office or other outpatient visit, 20-29 minutes 39 29 $93
36415 Insertion of needle into vein for collection of blood sample 34 29 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 31 29 $15
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 29 29 $136

In context: peer comparison

Among 10 peers in this city , average services per provider: 61. This provider delivers 5.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
660
Patients
157
Total drug cost
$9,837
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 118 39 $1,508
Amlodipine Besylate Generic 96 27 $753
Levothyroxine Sodium Generic 62 16 $779
Rosuvastatin Calcium Generic 40 12 $1,317
Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) Brand 39 11 $508
Tamsulosin Hcl Generic 38 13 $589
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 37 0 $835
Lisinopril Generic 36 12 $291
Atenolol-Chlorthalidone (Atenolol/Chlorthalidone) Brand 32 0 $1,508
Meloxicam Generic 31 0 $365

Frequently asked questions

Auto-generated from federal data
What is Dr. Garth Oliver's medical specialty?
Dr. Garth Oliver practices Internal Medicine Physician in West Haven, CT.
Where does Dr. Garth Oliver practice?
Dr. Garth Oliver practices at 603 Savin Ave, West Haven, CT 065164933. Office phone: 2039322400.
What is Dr. Garth Oliver's NPI?
Dr. Garth Oliver's National Provider Identifier (NPI) is 1285673145, issued by NPPES.
Does Dr. Garth Oliver accept Medicare assignment?
Yes. Dr. Garth Oliver accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Garth Oliver 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); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.