NPPES file of Aug 9, 2026

Cengiz Inal, MD

Hematology & Oncology Physician · Johns Creek, GA

Cengiz Inal, MD is a hematology & oncology physician with a practice address in Johns Creek, Georgia, and NPI 1598907891, issued on Apr 1, 2009. Check the license (Georgia 95791, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598907891
Name
Cengiz Inal
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
95791 GA
Self-reported in NPPES; status is on the state search
Practice location
6335 Hospital Pkwy, Johns Creek, GA 30097
Phone
(404) 778-1900
Enumerated
Apr 1, 2009
Record last updated
Jul 11, 2023
Medicare enrollment
Enrolled (PECOS I20230720001230); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6335 Hospital Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brittany AdamsGenetic Counselor (M.S.)1467245829
  2. Diana Alizadeh, MDAnesthesiology Physician1629126586
  3. Jennifer Arrieta, PA-CMedical Physician Assistant1609845007
  4. Brigitte Council, PAPhysician Assistant1750742714
  5. Anita Degler, CRNACertified Registered Nurse Anesthetist1669441861
  6. Quentin FarmerPhysician Assistant1437479219

Verify Cengiz Inal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 95791
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Georgia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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38% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

542 Medicare Part D claims for 97 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 22 claims were for opioids.

  1. Cengiz Inal542
  2. Specialty average877

Most prescribed

  1. Ondansetron Hcl39 claims
  2. Prochlorperazine Maleate38 claims
  3. Dexamethasone37 claims
  4. Anastrozole27 claims
  5. Pantoprazole Sodium26 claims
  6. Olanzapine23 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 92.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score73.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Emory Clinic IncAtlanta, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cengiz Inal among 396 hematology & oncology physician records in Georgia

Cengiz Inal, MD is one of 396 hematology & oncology physician records with a practice address in Georgia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 69% of them.

  • NPI issued2009 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2007 · median 2002 among the 300 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Georgia

There are 396 hematology & oncology physician records in Georgia.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Mohan Krishnamachary, MDJohns Creek, GA 300971588625099
  2. Mary Ninan, M.DJohns Creek, GA 300971356533145
  3. Karthi Subbannan, M.DJohns Creek, GA 300971154443091
  4. Stephen Szabo, MDJohns Creek, GA 300971780662361
  5. Hannah JarnaginDuluth, GA 300961518615376
  6. Venkata Pokuri, MDDuluth, GA 300961992017362
  7. Richard Carter, MDConyers, GA 300941083660104
  8. Megan McKee, M.D.Conyers, GA 300941114161411

Common questions

What is Cengiz Inal, MD's NPI number?

Cengiz Inal, MD's National Provider Identifier (NPI) is 1598907891, issued on Apr 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Cengiz Inal, MD located?

The NPPES record lists a practice address at 6335 Hospital Pkwy, Johns Creek, GA, 30097. Phone: (404) 778-1900. Providers update this record themselves, so call before visiting.

How can I verify Cengiz Inal, MD's license?

NPPES lists Georgia license number 95791, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Cengiz Inal, MD prescribe under Medicare Part D?

In 2024, Cengiz Inal, MD had 542 Medicare Part D claims for 97 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Cengiz Inal, MD's MIPS final score?

The 2023 MIPS final score is 92.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.