NPPES file of Aug 9, 2026

Celia C. Mamby, MD

Hematology & Oncology Physician · Lithonia, GA

Celia C. Mamby, MD is a hematology & oncology physician with a practice address in Lithonia, Georgia, and NPI 1255319752, issued on Jan 4, 2006. Check the license (Georgia 039629, 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
1255319752
Name
Celia C. Mamby
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
039629 GA
Self-reported in NPPES; status is on the state search
Practice location
5700 Hillandale Dr, Lithonia, GA 30058
Phone
(770) 981-5431
Enumerated
Jan 4, 2006
Record last updated
Aug 17, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(770) 981-5515
Medicaid ID
000639878AC GA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5700 Hillandale Dr

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

  1. Kofi-Ann McDermott, NPNurse Practitioner1427821990
  2. Anissa Sharifi, M.D.Pediatrics Physician1730144569

Verify Celia C. Mamby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 039629
    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

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7% more Medicare Part D claims than the average hematology & oncology physician in 2024

939 Medicare Part D claims for 224 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 69 claims were for opioids.

  1. Celia Mamby939
  2. Specialty average877

Most prescribed

  1. Letrozole237 claims
  2. Anastrozole89 claims
  3. Eliquis55 claims
  4. Gabapentin37 claims
  5. Xarelto35 claims
  6. Hydroxyurea34 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 practice group's MIPS final score for 2023 (Medicare payment program): 68.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score70.8
  2. Costout of 100 · 30%40.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $511.41

17 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Celia Mamby$511.41
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Celia C. Mamby among 396 hematology & oncology physician records in Georgia

Celia C. Mamby, 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 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 49% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 76% of these records are
  • Record last updated2020 · 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. Michael Andrews, MDMarietta, GA 300601245234608
  2. Louis Garrot, M.D.Marietta, GA 300601609941335
  3. Bruce Gould, MDMarietta, GA 300601326042706
  4. Hillary Hahm, MD, PHDMarietta, GA 300601801890280
  5. Dean Kirkel, MDMarietta, GA 300601740242932
  6. Carmen Klass, MD, PHDMarietta, GA 300601598871410
  7. Zulfiqar Malik, M.D., PHDMarietta, GA 300601841364908
  8. Steven McCune, MD, PHDMarietta, GA 300601043215452

Common questions

What is Celia C. Mamby, MD's NPI number?

Celia C. Mamby, MD's National Provider Identifier (NPI) is 1255319752, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Celia C. Mamby, MD located?

The NPPES record lists a practice address at 5700 Hillandale Dr, Lithonia, GA, 30058. Phone: (770) 981-5431. Providers update this record themselves, so call before visiting.

How can I verify Celia C. Mamby, MD's license?

NPPES lists Georgia license number 039629, 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 Celia C. Mamby, MD prescribe under Medicare Part D?

In 2024, Celia C. Mamby, MD had 939 Medicare Part D claims for 224 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Celia C. Mamby, MD's MIPS final score?

The 2023 MIPS final score is 68.4 of 100, reported for the practice group. 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.