Doctor profile · Federal record

Dr. Samuel Grovenburg, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Portland, OR

  • NPI 1548624166
  • Accepts Medicare
  • MIPS 87.8 / 100 · 2023
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4805 Ne Glisan St
Portland, OR 97213
(503) 215-2392
Additional location
3181 Sw Sam Jackson Park RD, L475
Portland, OR 972393011
(503) 494-6551
fax (503) 494-0979
Mailing address
Po Box 3158
Portland, OR 972083158

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
March 10, 2021
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Oregon #MD189434
Medicaid
OR #500709428

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548624166. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
338
Distinct HCPCS
4
Medicare allowed
$38,413
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 220 88 $121
99239 Hospital discharge day management, more than 30 minutes 58 57 $117
G0316 Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th 39 20 $31
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 21 20 $177

In context: peer comparison

Among 209 peers in Portland Internal Medicine Physician, average services per provider: 60. This provider delivers 5.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Samuel Grovenburg's medical specialty?
Dr. Samuel Grovenburg practices Internal Medicine Physician in Portland, OR.
Where does Dr. Samuel Grovenburg practice?
Dr. Samuel Grovenburg practices at 4805 Ne Glisan St, Portland, OR 97213. Office phone: 5032152392.
What is Dr. Samuel Grovenburg's NPI?
Dr. Samuel Grovenburg's National Provider Identifier (NPI) is 1548624166, issued by NPPES.
Does Dr. Samuel Grovenburg accept Medicare assignment?
Yes. Dr. Samuel Grovenburg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Samuel Grovenburg commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316). Source: CMS Medicare Physician & Other Practitioners file.