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DR. MARY MARGARET PORTER MD
NPI 1194465476
Internal Medicine in Oklahoma City, OK

Active since April 01, 2022PECOS EnrolledAccepts Medicare Assignment
800 STANTON L YOUNG BLVD, OKLAHOMA CITY, OK 73104(405) 271-2316 Get Directions Write a Review

NPPES record last updated: July 31, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 4, 2023, Jun 8, 2022 (2 updates tracked since 2022).

About Dr. Mary Margaret Porter Md NPPES

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

DR. MARY MARGARET PORTER MD (NPI 1194465476) is an individual internal medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (39488) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, and is a graduate of University Of Oklahoma College Of Medicine (2022).

NPPES Registry Identity

NPI1194465476
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARY MARGARET PORTERCredential: MD
Location Address800 STANTON L YOUNG BLVDOklahoma City, OK 73104-5018
Mailing Address800 Stanton L Young Blvd # 6300Oklahoma City, OK 73104-5018 · (405) 821-0683
Phone(405) 271-2316
Sole ProprietorNo
Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2022
Enumeration DateApril 1, 2022
Last NPPES UpdateJuly 31, 20252 updates tracked since enumeration
NPPES CertifiedJuly 31, 2025
✔ NPI 1194465476 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OK · 39488
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.
Also ListedHospitalistTaxonomy 208M00000X · License 39488 (OK)
800 STANTON L YOUNG BLVD, 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, Medica, Mending Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Margaret Porter 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 ID5294103859
PECOS Enrollment IDI20250804003695
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.

Hospital Affiliations CMS Care Compare 3

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

Ssm Health St Anthony Hospital - Oklahoma City

Acute Care Hospitals · Oklahoma City, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370037
Location1000 North Lee AvenueOklahoma City, OK 73101 · Oklahoma County
Emergency services Birthing friendly

Ssm Health St Anthony Hospital - Midwest

Acute Care Hospitals · Midwest City, OK
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370094
Location2825 Parklawn DriveMidwest City, OK 73110 · Oklahoma County
Emergency services

Ssm Health St Anthony Hospital - Shawnee

Acute Care Hospitals · Shawnee, OK
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370149
Location1102 W MacarthurShawnee, OK 74804 · Pottawatomie County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73104 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 20

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

ROHAN HYLTON
Anesthesiology
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-2316
DR. JAKE LEE EVANS MD
Radiology (Diagnostic Radiology)
800 STANTON L YOUNG BLVD, AAT 6300
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-5963
MADISON RYANNE CRAFT MD
Orthopaedic Surgery
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (915) 783-8164
MACGREGOR THOMAS
Student in an Organized Health Care Education/Training Program
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-2316
DAVID SAN MARTIN
Student in an Organized Health Care Education/Training Program
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-2316
VIJAY RAJ
Student in an Organized Health Care Education/Training Program
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-2316
MICHAEL TAYLOR HEATH MD
Surgery
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-6308
DR. ILINA TERZIYSKI MD
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
800 STANTON L YOUNG BLVD
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-8469

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 Mary Porter's NPI number?

The NPI number for Mary Porter is 1194465476. It was assigned to this individual provider in the NPPES registry on April 1, 2022.

Where is Mary Porter located?

Mary Porter practices at 800 Stanton L Young Blvd, Oklahoma City, OK 73104. The listed phone number is (405) 271-2316.

What is Mary Porter's specialty?

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

Is Mary Porter enrolled in Medicare?

Yes. Mary Porter 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.

What insurance does Mary Porter accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Medica and Mending Health list Mary Porter 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 Mary Porter affiliated with any hospitals?

According to CMS data, Mary Porter is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, Ssm Health St Anthony Hospital - Midwest and Ssm Health St Anthony Hospital - Shawnee.

When was this NPI record last updated?

The NPPES record for Mary Porter was last updated on July 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.