Doctor profile · Federal record

Dr. Thomas O'Connor, MD

Internal Medicine Physician · Ann Arbor, MI

  • NPI 1619066859
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
380 Parkland Plz
Ann Arbor, MI 481036201
(734) 998-7207
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
September 17, 2019
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #4301047205
Medicaid
MI #1647962

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619066859. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,404
Distinct HCPCS
9
Medicare allowed
$145,937
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 936 507 $99
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 315 315 $130
99214 Established patient office or other outpatient visit, 30-39 minutes 44 41 $99
G0444 Annual depression screening, 5 to 15 minutes 30 30 $9
99443 Telephone medical discussion with physician, 21-30 minutes 25 18 $98
99495 Transitional care management services for problem of at least moderate complexity 16 16 $141
99213 Established patient office or other outpatient visit, 20-29 minutes 14 14 $67
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 13 12 $8
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 11 11 $167

In context: peer comparison

Among 135 peers in Ann Arbor Internal Medicine Physician, average services per provider: 77. This provider delivers 18× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,262
Patients
380
Total drug cost
$23,716
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 276 84 $5,506
Amlodipine Besylate Generic 162 48 $1,887
Lisinopril Generic 128 41 $1,899
Levothyroxine Sodium Generic 117 31 $2,261
Losartan Potassium Generic 99 26 $1,719
Omeprazole Generic 87 27 $1,988
Gabapentin Generic 48 15 $593
Metformin Hcl Generic 48 20 $909
Simvastatin Generic 48 13 $898
Metoprolol Succinate Generic 47 15 $1,082

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas O'Connor's medical specialty?
Dr. Thomas O'Connor practices Internal Medicine Physician in Ann Arbor, MI.
Where does Dr. Thomas O'Connor practice?
Dr. Thomas O'Connor practices at 380 Parkland Plz, Ann Arbor, MI 481036201. Office phone: 7349987207.
What is Dr. Thomas O'Connor's NPI?
Dr. Thomas O'Connor's National Provider Identifier (NPI) is 1619066859, issued by NPPES.
What procedures does Dr. Thomas O'Connor commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.