Doctor profile · Federal record

Dr. Gregory Markman, RN

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Critical Care Medicine Registered Nurse · Oakland, CA

  • NPI 1972114650
  • Accepts Medicare
  • 4 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2181 Trafalgar Pl
Oakland, CA 946113245
(539) 219-8826

Credentials & registration

NPPES · NUCC
NPI registered
August 2020 — 6 yrs on file
Profile last updated
April 14, 2023
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
367500000X — NUCC code
State licenses (2)
California #95002033 · California #95119575

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972114650. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
23
Distinct HCPCS
2
Medicare allowed
$3,077
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 12 12 $125
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 11 11 $143

In context: peer comparison

Among 9 peers in Oakland Certified Registered Nurse Anesthetist, average services per provider: 38. This provider delivers 0.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Markman's medical specialty?
Dr. Gregory Markman practices Certified Registered Nurse Anesthetist in Oakland, CA.
Where does Dr. Gregory Markman practice?
Dr. Gregory Markman practices at 2181 Trafalgar Pl, Oakland, CA 946113245. Office phone: 5392198826.
What is Dr. Gregory Markman's NPI?
Dr. Gregory Markman's National Provider Identifier (NPI) is 1972114650, issued by NPPES.
Does Dr. Gregory Markman accept Medicare assignment?
Yes. Dr. Gregory Markman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Markman commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.