DR. MARY JOHN NINAN M.D
NPI 1356533145
Internal Medicine - Hematology & Oncology in Johns Creek, GA

Active since August 15, 2007PECOS EnrolledAccepts Medicare Assignment
68.38/100
CMS Quality Rating
6300 HOSPITAL PKWY STE 300, JOHNS CREEK, GA 30097(770) 623-8965(770) 623-4018 Get Directions Write a Review

NPPES record last updated: August 20, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 20, 2020, Dec 12, 2018 (2 updates tracked since 2018).

About Dr. Mary John Ninan M.d NPPES

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

DR. MARY JOHN NINAN M.D (NPI 1356533145) is an individual hematology & oncology provider in Johns Creek, Georgia, licensed in Georgia (058551) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, is affiliated with Northside Hospital Forsyth, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1356533145
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameDR. MARY JOHN NINANCredential: M.D
Location Address6300 HOSPITAL PKWY STE 300Johns Creek, GA 30097-1982
Mailing Address1835 Savoy Dr Ste 300Atlanta, GA 30341-1071 · (678) 566-6995 · Fax (678) 566-0346
Fax(770) 623-4018
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateAugust 15, 2007
Last NPPES UpdateAugust 20, 20202 updates tracked since enumeration
NPPES CertifiedAugust 20, 2020
NPI 1356533145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses Licensed in GA · 058551 Licensed in TX · N7955 Licensed in TX · 43128
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
6300 HOSPITAL PKWY STE 300, Johns Creek, GA 30097

Other Identifiers 3

Medicaid003158193CGA
Medicaid003158193DGA
OtherG10127AGA · Medicare Ptan

Accepted 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 John Ninan 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 ID7517081672
PECOS Enrollment IDI20150209001303
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.

Areas of Expertise CMS Part B claims 7

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
164 services105 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
148 services81 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.
66 services31 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
31 services29 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
26 services26 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
25 services18 patients

Hospital Affiliations CMS Care Compare 4

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

Northside Hospital Forsyth

Acute Care Hospitals · Cumming, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110005
Location1200 Northside Forsyth DriveCumming, GA 30041 · Forsyth County
Birthing friendly

Northside Hospital Cherokee

Acute Care Hospitals · Canton, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number110008
Location450 Northside Cherokee BoulevardCanton, GA 30115 · Cherokee County
Emergency services Birthing friendly

Northside Hospital

Acute Care Hospitals · Atlanta, GA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110161
Location1000 Johnson Ferry Road, NEAtlanta, GA 30342 · Fulton County
Birthing friendly

Northside Hospital Duluth

Acute Care Hospitals · Duluth, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110252
Location3620 Howell Ferry RoadDuluth, GA 30096 · Gwinnett County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30097 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
$172.43 typical visit price
range $56.84 – $172.43
Typical copayment $43.10 (range $14.21 – $43.10)
Most-billed visit code 99205
Established Patient
$100.20 typical visit price
range $18.22 – $140.40
Typical copayment $25.05 (range $4.55 – $35.10)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

68.38/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.82
Improvement Activities40
Cost40.24

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.

Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier11 claims924 services$0.74 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier16 claims16 services$18.92 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 5

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

Internal Medicine (Hematology & Oncology)
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner (Family)
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097
Nurse Practitioner (Family)
6300 HOSPITAL PKWY STE 300
JOHNS CREEK, GA 30097

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 Ninan's NPI number?

The NPI number for Mary Ninan is 1356533145. It was assigned to this individual provider in the NPPES registry on August 15, 2007.

Where is Mary Ninan located?

Mary Ninan practices at 6300 Hospital Pkwy Ste 300, Johns Creek, GA 30097. The listed phone number is (770) 623-8965.

What is Mary Ninan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Mary Ninan enrolled in Medicare?

Yes. Mary Ninan 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 Ninan accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Mary Ninan 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 Ninan affiliated with any hospitals?

According to CMS data, Mary Ninan is affiliated with Northside Hospital Forsyth, Northside Hospital Cherokee, Northside Hospital and Northside Hospital Duluth.

When was this NPI record last updated?

The NPPES record for Mary Ninan was last updated on August 20, 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.