DR. MARY KATHRYN MCMAHAN MD
NPI 1205021193
Internal Medicine in Baxley, GA

Q: What is Mary Mcmahan's NPI number?

The NPI number for Mary Mcmahan is 1205021193. It was assigned to this individual provider in the NPPES registry on September 13, 2007.

Q: What is Mary Mcmahan's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Mary Mcmahan was last updated on February 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since September 13, 2007PECOS EnrolledAccepts Medicare Assignment

163 E TOLLISON ST, BAXLEY, GA 31513(912) 367-9841(912) 367-7203 Get Directions Write a Review

NPPES record last updated: February 11, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Mary Kathryn Mcmahan Md NPPES

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

DR. MARY KATHRYN MCMAHAN MD (NPI 1205021193) is an individual internal medicine provider in Baxley, Georgia, licensed in Georgia (062860) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS, is affiliated with Memorial University Medical Center, and is a graduate of Other (2006).

NPPES Registry Identity

NPI1205021193

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. MARY KATHRYN MCMAHANCredential: MD

Location Address163 E TOLLISON STBaxley, GA 31513-0120

Mailing AddressPo Box 2070Baxley, GA 31515-2070 · (912) 367-9841 · Fax (912) 367-7203

Phone(912) 367-9841

Fax(912) 367-7203

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateSeptember 13, 2007

Last NPPES UpdateFebruary 11, 2020

✔ NPI 1205021193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in GA · 062860

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.

163 E TOLLISON ST, Baxley, GA 31513

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Other Identifiers 3

MedicaidG62860SC

OtherP00758575GA · Medicare Rr

Medicaid752201798AGA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter 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

Dr. Mary Kathryn Mcmahan 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 ID9032263371

PECOS Enrollment IDI20090820000428

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

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

The Baxley And Appling County Hospital Authority

Same address

Pediatrics

163 E TOLLISON ST
Baxley, GA 31513

Reassigned Medicare billing, Georgia enrollment
14 clinicians in this Medicare group

NPI 1437538501 (912) 367-9841

Hospital Medicine Services Of Ga LLC

77 mi

Hospitalist

4700 WATERS AVE
Savannah, GA 31404

Reassigned Medicare billing, Georgia enrollment
169 clinicians in this Medicare group

NPI 1891653655 (912) 350-7020

Cogent Healthcare Of Georgia PC

109 mi

Internal Medicine

400 CHARTER BLVD
Macon, GA 31210

Reassigned Medicare billing, Georgia enrollment
635 clinicians in this Medicare group

NPI 1609827823 (478) 757-8200

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

314 services137 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

144 services72 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

113 services112 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

Memorial University Medical Center

Acute Care Hospitals · Savannah, GA

1/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number110036

Location4700 Waters AvenueSavannah, GA 31404 · Chatham County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 31513 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

$124.10 typical visit price

range $53.31 – $164.04

Typical copayment $31.02 (range $13.32 – $41.01)

Most-billed visit code 99204

Established Patient

$94.84 typical visit price

range $16.68 – $133.24

Typical copayment $23.71 (range $4.17 – $33.31)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier18 claims18 services$17.83 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers21 claims21 services$102.90 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 16

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

SOUTHEAST LUNG & CRITICAL CARE SPECIALISTS

Internal Medicine (Pulmonary Disease)