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MS. GREGORY JAMES MARKMAN RN
NPI 1972114650
Nurse Anesthetist, Certified Registered in Oakland, CA

Active since August 14, 2020Accepts Medicare Assignment
2181 TRAFALGAR PL, OAKLAND, CA 94611(539) 219-8826 Get Directions Write a Review

NPPES record last updated: April 14, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 14, 2023, Aug 14, 2020 (2 updates tracked since 2020).

About Ms. Gregory James Markman Rn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. GREGORY JAMES MARKMAN RN (NPI 1972114650) is an individual nurse anesthetist, certified registered in Oakland, California, licensed in California (95002033) and active in the NPI registry since August 2020. He is a graduate of Other (2022).

NPPES Registry Identity

NPI1972114650
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMS. GREGORY JAMES MARKMANCredential: RN
Location Address2181 TRAFALGAR PLOakland, CA 94611-3245
Mailing Address2181 Trafalgar PlOakland, CA 94611-3245 · (539) 219-8826
Phone(539) 219-8826
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateAugust 14, 2020
Last NPPES UpdateApril 14, 20232 updates tracked since enumeration
NPPES CertifiedApril 14, 2023
✔ NPI 1972114650 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in CA · 95002033
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedRegistered Nurse · Critical Care MedicineTaxonomy 163WC0200X · License 95119575 (CA)
2181 TRAFALGAR PL, Oakland, CA 94611
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Gregory James Markman Rn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951776392
PECOS Enrollment IDI20230417001701

Medicare Billing Reassignments

3

Medicare enrollment records show Gregory Markman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sutter Valley Medical Foundation
29 mi
Multi-Specialty
2720 LOW CT
Fairfield, CA 94534
NPI 1184859894 (707) 428-2731
Green Anesthesia
29 mi
Nurse Anesthetist, Certified Registered
2700 LOW CT FL 2
Fairfield, CA 94534
  • Reassigned Medicare billing, California enrollment
  • 64 clinicians in this Medicare group
NPI 1457039331 (707) 432-2700
Oak Creek Anesthesia Services, Inc.
191 mi
Anesthesiology
400 W MINERAL KING AVE
Visalia, CA 93291
  • Reassigned Medicare billing, California enrollment
  • 131 clinicians in this Medicare group
NPI 1619589512 (559) 624-5432

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
34 services34 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
27 services27 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
15 services15 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Markman's NPI number?

The NPI number for Gregory Markman is 1972114650. It was assigned to this individual provider in the NPPES registry on August 14, 2020.

Where is Gregory Markman located?

Gregory Markman practices at 2181 Trafalgar Pl, Oakland, CA 94611. The listed phone number is (539) 219-8826.

What is Gregory Markman's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Gregory Markman enrolled in Medicare?

Yes. Gregory Markman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Gregory Markman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Markman reassigns Medicare benefits to 3 organizations: Sutter Valley Medical Foundation (Fairfield, CA), Green Anesthesia (Fairfield, CA) and Oak Creek Anesthesia Services, Inc. (Visalia, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Markman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Markman was last updated on April 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.