Doctor profile · Federal record

Dr. Nicholas an, MD

Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Portland, OR

  • NPI 1306228853
  • Accepts Medicare
  • 11 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3181 Sw Sam Jackson Park RD # 2
Portland, OR 972393098
(503) 494-7641
fax (503) 494-8368
Additional location
757 Westwood Plz Ste 3325
Los Angeles, CA 900956402
(310) 267-3899
Mailing address
3181 Sw Sam Jackson Park RD, Mail Code Sjh-2
Portland, OR 972393098

Credentials & registration

NPPES · NUCC
NPI registered
June 2015 — 11 yrs on file
Profile last updated
July 3, 2020
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207L00000X — NUCC code
State licenses (2)
Oregon #MD197425 · California #A162035

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1306228853. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
37
Distinct HCPCS
3
Medicare allowed
$7,039
HCPCS Description Services Patients Avg allowed
00300 Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back 13 13 $199
64415 Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 13 13 $73
01402 Anesthesia for procedure for total knee joint replacement 11 11 $319

In context: peer comparison

Among 123 peers in this city , average services per provider: 22. This provider delivers 1.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicholas an's medical specialty?
Dr. Nicholas an practices Anesthesiology Physician in Portland, OR.
Where does Dr. Nicholas an practice?
Dr. Nicholas an practices at 3181 Sw Sam Jackson Park RD # 2, Portland, OR 972393098. Office phone: 5034947641.
What is Dr. Nicholas an's NPI?
Dr. Nicholas an's National Provider Identifier (NPI) is 1306228853, issued by NPPES.
Does Dr. Nicholas an accept Medicare assignment?
Yes. Dr. Nicholas an accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nicholas an commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back (HCPCS 00300); Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (HCPCS 64415); Anesthesia for procedure for total knee joint replacement (HCPCS 01402). Source: CMS Medicare Physician & Other Practitioners file.