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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARK WEISSMAN M.D.
NPI 1336365568
Internal Medicine in Bethany, OK

Active since April 17, 2007PECOS EnrolledAccepts Medicare Assignment
7815 NW 23RD ST, BETHANY, OK 73008(405) 792-2147(405) 603-1465 Get Directions Write a Review

NPPES record last updated: October 11, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 11, 2026, May 16, 2023, Jul 21, 2022 and 1 more (4 updates tracked since 2017).

About Mark Weissman M.d. NPPES

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

MARK WEISSMAN M.D. (NPI 1336365568) is an individual internal medicine provider in Bethany, Oklahoma, licensed in Oklahoma (15521) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (1974).

NPPES Registry Identity

NPI1336365568
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK WEISSMANCredential: M.D.
Location Address7815 NW 23RD STBethany, OK 73008
Mailing Address7815 Nw 23rd StBethany, OK 73008-4947 · (405) 792-2147 · Fax (405) 603-1465
Phone(405) 792-2147
Fax(405) 603-1465
Sole ProprietorNo
Medical School CMSNew York Medical CollegeGraduated 1974
Enumeration DateApril 17, 2007
Last NPPES UpdateOctober 11, 20264 updates tracked since enumeration
NPPES CertifiedMay 16, 2023
✔ NPI 1336365568 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OK · 15521
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
7815 NW 23RD ST, Bethany, OK 73008
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Other Identifiers 2

Other374380YRHZOK · Medicare Ptan
Medicaid100230000AOK

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

Mark Weissman M.d. 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 ID3072735810
PECOS Enrollment IDI20141112000881
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 Reassignments

3

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

Patriot Hyperbarics
Same address
Undersea and Hyperbaric Medicine
7815 NW 23RD ST BETHANY
Bethany, OK 73008
  • Reassigned Medicare billing, Oklahoma enrollment
NPI 1366149486 (719) 351-5122
Anadarko Indian Health Center
44 mi
Public Health, Federal
201 E PARKER MCKENZIE DRIVE
Anadarko, OK 73005
  • Reassigned Medicare billing, Texas enrollment
  • 177 clinicians in this Medicare group
NPI 1881637403 (405) 247-7900
Cherokee Nation
122 mi
Multi-Specialty
395200 W 2900 RD
Ochelata, OK 74051
  • Reassigned Medicare billing, Texas enrollment
  • 1,047 clinicians in this Medicare group
NPI 1871972430 (918) 535-6000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73008 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
$123.06 typical visit price
range $53.00 – $162.61
Typical copayment $30.76 (range $13.25 – $40.65)
Most-billed visit code 99204
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

PULSE POINT
Family Medicine (Hospice and Palliative Medicine)
7815 NW 23RD ST
BETHANY, OK 73008
Oklahoma County (405) 757-8197

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 Mark Weissman's NPI number?

The NPI number for Mark Weissman is 1336365568. It was assigned to this individual provider in the NPPES registry on April 17, 2007.

Where is Mark Weissman located?

Mark Weissman practices at 7815 NW 23rd St, Bethany, OK 73008. The listed phone number is (405) 792-2147.

What is Mark Weissman's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Weissman enrolled in Medicare?

Yes. Mark Weissman 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 Mark Weissman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Weissman reassigns Medicare benefits to 3 organizations: Patriot Hyperbarics (Bethany, OK), Anadarko Indian Health Center (Anadarko, OK) and Cherokee Nation (Ochelata, OK). 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 Mark Weissman'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 Mark Weissman was last updated on October 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.