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JASON R GASSMAN MD
NPI 1609453919
Anesthesiology in Oklahoma City, OK

Active since March 24, 2021PECOS EnrolledAccepts Medicare Assignment
920 STANTON L YOUNG BLVD STE 1140, OKLAHOMA CITY, OK 73104(405) 271-4351 Get Directions Write a Review

NPPES record last updated: June 24, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 24, 2025, Mar 24, 2021 (2 updates tracked since 2021).

About Jason R Gassman Md NPPES

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

JASON R GASSMAN MD (NPI 1609453919) is an individual anesthesiology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (38317) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with O U Medical Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1609453919
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameJASON R GASSMANCredential: MD
Location Address920 STANTON L YOUNG BLVD STE 1140Oklahoma City, OK 73104-5036
Mailing Address920 Stanton L Young Blvd Ste 1140Oklahoma City, OK 73104-5036
Phone(405) 271-4351
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 24, 2021
Last NPPES UpdateJune 24, 20252 updates tracked since enumeration
NPPES CertifiedMay 29, 2025
✔ NPI 1609453919 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in OK · 38317
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
920 STANTON L YOUNG BLVD STE 1140, Oklahoma City, OK 73104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health.Insurance ›

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

Jason R Gassman Md 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 ID7012423098
PECOS Enrollment IDI20250718000302
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Jason Gassman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ou Health Partners, Inc
3.5 mi
Multi-Specialty
1200 CHILDRENS AVE STE 11200
Oklahoma City, OK 73104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 1,795 clinicians in this Medicare group
NPI 1528642642 (405) 271-3932

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

O U Medical Center

Acute Care Hospitals · Oklahoma City, OK
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370093
Location700 NE 13th StreetOklahoma City, OK 73104 · Oklahoma County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS BALVENIA TREVINO APRN
Nurse Practitioner
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
HANNA ELIZABETH JEFFREYS RN
Nurse Anesthetist, Certified Registered
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
LEONARD D MORGAN D.O.
Anesthesiology
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
DR. CHARISSE NICOLE STOVALL MD
Anesthesiology
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
DR. PHILLIP M PIAN M.D.
Anesthesiology
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
PAUL S YASUDA MD
Anesthesiology
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
MS. MICHAELA J HUBBARD CRNA
Nurse Anesthetist, Certified Registered
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351
JOHN W. ZHONG MD
Anesthesiology
920 STANTON L YOUNG BLVD STE 1140
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4351

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 Jason Gassman's NPI number?

The NPI number for Jason Gassman is 1609453919. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Where is Jason Gassman located?

Jason Gassman practices at 920 Stanton L Young Blvd Ste 1140, Oklahoma City, OK 73104. The listed phone number is (405) 271-4351.

What is Jason Gassman's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Jason Gassman enrolled in Medicare?

Yes. Jason Gassman 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 organization bills Medicare for Jason Gassman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jason Gassman reassigns Medicare benefits to Ou Health Partners, Inc (Oklahoma City, OK). The 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 Jason Gassman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jason Gassman accept?

Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list Jason Gassman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Jason Gassman affiliated with any hospitals?

According to CMS data, Jason Gassman is affiliated with O U Medical Center.

When was this NPI record last updated?

The NPPES record for Jason Gassman was last updated on June 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.