Carmen Manuela Klass, MD, PHD
Hematology & Oncology Physician · Marietta, GA
Carmen Manuela Klass, MD, PHD is a hematology & oncology physician with a practice address in Marietta, Georgia, and NPI 1598871410, issued on Aug 22, 2006. Check the license (Georgia 053774, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Carmen Manuela Klass
- Credential
- MD, PHD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 053774 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
- Aug 22, 2006
- 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
- 725272375C GA
725272375A GA
725272375B GA
725272375D GA - Medicare enrollment
- Enrolled (PECOS I20061205000152); accepts Medicare assignment
- 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 Carmen Manuela Klass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 053774Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,027 Medicare Part D claims for 373 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 258 claims were for opioids.
Most prescribed
- Letrozole131 claims
- Eliquis118 claims
- Ondansetron Hcl98 claims
- Oxycodone Hcl96 claims
- Anastrozole91 claims
- Prochlorperazine Maleate64 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: $933.17
43 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 LLCMarietta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carmen Manuela Klass among 396 hematology & oncology physician records in Georgia
Carmen Manuela Klass, MD, PHD 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 fileYes · 76% of these records are
- Graduated1994 · median 2002 among the 300 with a school on file
- 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
- Zulfiqar Malik, M.D., PHDMarietta, GA 300601841364908
- Steven McCune, MD, PHDMarietta, GA 300601043215452
Common questions
What is Carmen Manuela Klass, MD, PHD's NPI number?
Carmen Manuela Klass, MD, PHD's National Provider Identifier (NPI) is 1598871410, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carmen Manuela Klass, 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 Carmen Manuela Klass, MD, PHD's license?
NPPES lists Georgia license number 053774, 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 Carmen Manuela Klass, MD, PHD prescribe under Medicare Part D?
In 2024, Carmen Manuela Klass, MD, PHD had 2,027 Medicare Part D claims for 373 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Carmen Manuela Klass, 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.