Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary John Ninan, M.D

Hematology & Oncology Physician in Johns Creek, GA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1356533145

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary John Ninan

Credential M.D

Sex Female

Practice address 6300 Hospital Pkwy Ste 300, Johns Creek, GA, 30097

Phone (770) 623-8965

Fax (770) 623-4018

Enumeration date Aug 15, 2007

Last updated in NPPES Aug 20, 2020

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 058551 (GA) Primary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 43128 (TX) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License N7955 (TX) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
G10127A	Other	GA	MEDICARE PTAN
003158193C	Medicaid	GA	-
003158193D	Medicaid	GA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1356533145 active?

Yes, as of the latest NPPES snapshot, NPI 1356533145 is active (record last updated 2020-08-20).

How do I verify Mary Ninan's NPI record?

Cross-check NPI 1356533145 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Bridgitte Jackson Family Nurse Practitioner · Johns Creek, GA NPI 1770643876 Karthi Subbannan Hematology & Oncology Physician · Johns Creek, GA NPI 1154443091 Canelda Perry Nurse Practitioner · Johns Creek, GA NPI 1750846069 Danah Mcpherson Family Nurse Practitioner · Johns Creek, GA NPI 1942070743 Dorinda Nelson Nurse Practitioner · Johns Creek, GA NPI 1487535548

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-20.