Hillary A. Hahm, MD, PHD
Hematology & Oncology Physician · Marietta, GA
Hillary A. Hahm, MD, PHD is a hematology & oncology physician with a practice address in Marietta, Georgia, and NPI 1801890280, issued on Jun 13, 2005. Check the license (Georgia 048051, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Hillary A. Hahm
- Credential
- MD, PHD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 048051 GA
Self-reported in NPPES; status is on the state search - Practice location
- 340 Kennestone Hospital Blvd Ste 100, Marietta, GA 30060
- Phone
- (770) 281-5100
- Enumerated
- Jun 13, 2005
- Record last updated
- Jun 10, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (678) 581-7100
- Medicaid IDs
- 00855368C GA
00855368A GA
00855368B GA
00855368D GA - Medicare enrollment
- Enrolled (PECOS I20100209000402); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1981
- Entity
- Type 1 · individual
Also registered at 340 Kennestone Hospital Blvd Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Andrews, MDHematology & Oncology Physician1245234608
- Michelle Armstrong, PA-CMedical Physician Assistant1316287790
- Melissa Caplan, PA-CMedical Physician Assistant1174501274
- Madison Cobb, PA-CMedical Physician Assistant1417626805
- Peyton Couper, PA-CPhysician Assistant1285411363
- Reagan Cox, PA-CPhysician Assistant1225863699
Verify Hillary A. Hahm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 048051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,617 Medicare Part D claims for 312 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 234 claims were for opioids.
Most prescribed
- Anastrozole153 claims
- Eliquis116 claims
- Letrozole116 claims
- Tamoxifen Citrate98 claims
- Oxycodone Hcl72 claims
- Morphine Sulfate Er62 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): 92.9 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $769.86
37 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Wellstar Medical Group LLCAustell, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in Georgia
There are 396 hematology & oncology physician records in Georgia.
Other hematology & oncology physician records in Georgia
- Abeer AbouyabisMacon, GA1427235613
- Bamidele Adesunloye, MDNewnan, GA1598736597
- Shubham Adroja, M.D.Augusta, GA1467016519
- Simbo Aduloju, M.DDecatur, GA1770769234
- Victoria Afshani, MDCovington, GA1871571588
- Arvind Aggarwal, M.D.Macon, GA1154330090
- Shahid Ahmed, MBBSAtlanta, GA1841555083
- Ayman Al-Hakim, MDGriffin, GA1447313085
- Sami Ali, M.D.Snellville, GA1821382250
- Aaron Alizadeh, M.D.Decatur, GA1063412567
Common questions
What is Hillary A. Hahm, MD, PHD's NPI number?
Hillary A. Hahm, MD, PHD's National Provider Identifier (NPI) is 1801890280, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Hillary A. Hahm, MD, PHD located?
The NPPES record lists a practice address at 340 Kennestone Hospital Blvd Ste 100, Marietta, GA, 30060. Phone: (770) 281-5100. Providers update this record themselves, so call before visiting.
How can I verify Hillary A. Hahm, MD, PHD's license?
NPPES lists Georgia license number 048051, 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 Hillary A. Hahm, MD, PHD prescribe under Medicare Part D?
In 2024, Hillary A. Hahm, MD, PHD had 1,617 Medicare Part D claims for 312 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Hillary A. Hahm, MD, PHD's MIPS final score?
The 2023 MIPS final score is 92.9 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.