Don W. Shaffer, MD
Hematology & Oncology Physician · Marietta, GA
Don W. Shaffer, MD is a hematology & oncology physician with a practice address in Marietta, Georgia, and NPI 1124023452, issued on Jun 14, 2005. Check the license (Georgia 037681, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Don W. Shaffer
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 037681 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 14, 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
- 00594591F GA
00594591C GA
00594591H GA
00594591E GA - Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 396 in Georgia → Look up another NPI →
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 Don W. Shaffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 037681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
17 Medicare Part D claims, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 88% of claims.
Most prescribed
- Gamunex-C15 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).
Don W. Shaffer among 396 hematology & oncology physician records in Georgia
Don W. Shaffer, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2019 · 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.
All 396 in Georgia → Every provider in Marietta → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Michael Andrews, MDMarietta, GA 300601245234608
- Pooja Bardhan, MDMarietta, GA 300601962601344
- Louis Garrot, M.D.Marietta, GA 300601609941335
- Bruce Gould, MDMarietta, GA 300601326042706
- Hillary Hahm, MD, PHDMarietta, GA 300601801890280
- Dean Kirkel, MDMarietta, GA 300601740242932
- Carmen Klass, MD, PHDMarietta, GA 300601598871410
- Zulfiqar Malik, M.D., PHDMarietta, GA 300601841364908
Common questions
What is Don W. Shaffer, MD's NPI number?
Don W. Shaffer, MD's National Provider Identifier (NPI) is 1124023452, issued on Jun 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Don W. Shaffer, MD 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 Don W. Shaffer, MD's license?
NPPES lists Georgia license number 037681, 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 Don W. Shaffer, MD prescribe under Medicare Part D?
In 2024, Don W. Shaffer, MD had 17 Medicare Part D claims; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Don W. Shaffer, MD'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.