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Dr. Carmen Manuela Klass, MD, PhD
NPI1598871410PAC ID6204835093
- Medicare services, 2024
- 1,425
- Medicare patients, 2024
- 502
- Part D claims, 2024
- 2,027
- Publications
- 1
- MIPS score, 2024
- 94
- Practice address
- 3950 Austell Rd, Austell, GA 30106
- Practice phone
- Call (770) 732-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Klass' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Carmen Manuela Klass is a hematologist and oncologist in Austell, Georgia
Dr. Klass practices at Wellstar Cobb Medical Center in Austell, Georgia, part of Wellstar Health System.
Dr. Klass' NPI, 1598871410, was assigned on August 22, 2006. Dr. Klass holds Georgia license 053774.
NPI and contact details
- NPI
- 1598871410NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204835093
- NPI enumeration date
- August 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (770) 732-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Carmen Manuela Klass practices at Wellstar Cobb Medical Center in Austell, Georgia
Dr. Klass' primary practice is Wellstar Cobb Medical Center, at 3950 Austell Rd, Austell, GA 30106 in Cobb County. The practice phone is (770) 732-4000.
- Wellstar Cobb Medical Center3950 Austell Rd, Austell, GA 30106 · Cobb CountyPhone(770) 732-4000
Source: Dmand AI Affiliation Data
Dr. Carmen Manuela Klass is affiliated with 8 sites of care and 1 medical group
Dr. Klass' primary practice is Wellstar Cobb Medical Center in Austell, Georgia, part of Wellstar Health System. Dr. Klass is also affiliated with Wellstar Kennestone Regional Medical Center. The medical group on file is Wellstar Medical Group. Dmand AI also links Dr. Klass to 4 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Wellstar Kennestone Regional Medical CenterWellstar Medical Group4 hospitalsNames with a free account1 group practice or clinicName with a free account1 home health agencyName with a free account
See all 9 affiliations for Dr. KlassSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Carmen Manuela Klass' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klass practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wellstar Cobb Medical Center | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Carmen Manuela Klass is one of 379 hematologists and oncologists in Georgia
Hematology and oncology is Dr. Klass' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Klass is licensed in Georgia.
Specialties and state licenses
- Hematology and oncology, GeorgiaPrimary
Hematologists and oncologists near Dr. Klass
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
379hematologists and oncologists in Georgia23hematologists and oncologists in Austell20hematologists and oncologists at Wellstar Cobb Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Carmen Manuela Klass billed Medicare for 1,425 services in 2024
CMS data shows 1,425 Medicare services from Dr. Klass across 11 procedure codes in 2024, for 502 Medicare patients. Medicare paid $89,963 for them.
Medicare services, 20241,425
Medicare patients502
Paid by Medicare$89,963
Procedure codes11
Dr. Klass' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0472024: 1,0361%
- Other services
- 2023: 02024: 389
Where Dr. Klass' Medicare services took place, 2024
- In an office1,31792%
- In a facility1088%
Dr. Klass compared with the Georgia median for hematologists and oncologists, 2024
- Dr. Klass
- Georgia median
- Medicare services
- 1,425vs 6912.1 times
- Medicare patients
- 502vs 2352.1 times
- Part D claims
- 1,643vs 6752.4 times
Medians across 350 hematologists and oncologists in Georgia with Dmand AI profiles that report each measure.
Dr. Klass' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Klass?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Klass and other hematologists and oncologists in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Carmen Manuela Klass treated 502 Medicare patients in 2024, average age 75
CMS counts 502 Medicare patients who saw Dr. Klass in 2024. The largest group is 65 to 74, with 232 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.63, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Klass' median patient age at 72, with 70% women.
Medicare patients, 2024502
Average age75
Average risk score1.63
Also on Medicaid5%
Dr. Klass' Medicare patients by age, 2024
Dr. Klass' Medicare patients by sex, 2024
- Women32565%
- Men17735%
Chronic conditions among Dr. Klass' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Cancer48%
- Ischemic heart disease33%
- Diabetes28%
- Chronic kidney disease27%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klass' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women70%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carmen Manuela Klass wrote 2,027 Medicare Part D claims in 2024
In 2024, Dr. Klass wrote 2,027 Medicare Part D claims for 373 patients. 82% of them were for generic drugs. CMS names the drug for 1,643 of them, across 45 drugs with 11 or more claims each, at $1,301,777 in total drug cost. In 2023, CMS named 1,535 claims across 44 drugs.
Part D claims, 20242,027
Drugs named by CMS45
Total drug cost$1.3M
Part D patients373
Dr. Klass' Part D claims by kind of drug, 2024
- Generic1,656 claims82%
- Brand-name and other371 claims18%
Dr. Klass' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Klass' Part D claims, 2024
- Opioids13%258 of 2,027 claims
- Antibiotics1%28 of 2,027 claims
- Antipsychotics, patients 65 and over1%11 of 2,027 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,5352024: 1,6437%
Drugs named by CMS: 45 in 2024, 44 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Carmen Manuela Klass scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Klass for performance year 2024, reported through an alternative payment model (APM). Dr. Klass accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Klass' MIPS scores, performance year 2024
- 94of 100Final score
- 82.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Carmen Manuela Klass has 1 publication on record
Dmand AI links 1 paper to Dr. Klass. Dr. Klass' most frequent co-authors are Fadlo R. Khuri, MD, Scott Arthur Kono, DO and Nabil F. Saba, MD.
Papers1
Dr. Klass' most frequent co-authors
Recent publications by Dr. Klass
See who Dr. Klass researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Klass works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Carmen Manuela Klass received $17,129 in industry payments from 2016 to 2025
CMS Open Payments shows 337 general payments to Dr. Klass from 45 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 56% of the total. Foundation Medicine, Inc. paid the most, $5,552.
General payments to Dr. Klass by program year, 2016 to 2025
General payments to Dr. Klass by kind, 2016 to 2025
$17.1Kin total
- Consulting fees$9,52056%
- Food and beverage$6,12936%
- Travel and lodging$9365%
- Education$5443%
Companies that paid Dr. Klass the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Carmen Manuela Klass's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Carmen Manuela Klass
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Carmen Manuela Klass' NPI number?
Dr. Carmen Manuela Klass' NPI number is 1598871410. It was assigned on August 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Carmen Manuela Klass?
Dr. Carmen Manuela Klass is a hematologist and oncologist in Austell, Georgia. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Carmen Manuela Klass practice?
Dr. Klass practices at 3950 Austell Rd, Austell, GA 30106. Dr. Klass' primary practice is Wellstar Cobb Medical Center in Austell, Georgia, part of Wellstar Health System. Dmand AI also links Dr. Klass to 4 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Carmen Manuela Klass' office phone number?
The practice phone on file for Dr. Klass is (770) 732-4000.
What is Dr. Carmen Manuela Klass' medical license number?
Dr. Klass holds Georgia license 053774.
Which hospitals is Dr. Carmen Manuela Klass affiliated with?
Dr. Klass practices at Wellstar Cobb Medical Center in Austell, Georgia. Dr. Klass is also affiliated with Wellstar Kennestone Regional Medical Center. Dmand AI links Dr. Klass to 4 more hospitals.
What medical group is Dr. Carmen Manuela Klass part of?
Dr. Klass is linked to Wellstar Medical Group.
Does Dr. Carmen Manuela Klass accept Medicare?
Yes. CMS data shows Dr. Klass billed Medicare for 1,425 services in 2024, and Dr. Klass accepts Medicare assignment.
What is Dr. Carmen Manuela Klass' MIPS score?
Dr. Klass' MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Carmen Manuela Klass see?
CMS counts 502 Medicare patients who saw Dr. Klass in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Carmen Manuela Klass bill to Medicare?
In 2024, Dr. Klass' most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99215).
What drugs does Dr. Carmen Manuela Klass prescribe most?
In 2024 Medicare Part D data, Dr. Klass' most prescribed drugs by claims were Letrozole, Eliquis and Ondansetron HCl.
Has Dr. Carmen Manuela Klass received payments from drug or device companies?
CMS Open Payments shows $17,129 in general payments to Dr. Klass from 45 companies from 2016 to 2025. The largest total came from Foundation Medicine, Inc.
How long has Dr. Carmen Manuela Klass been practicing?
Dr. Klass graduated from medical school in 1994, 32 years ago.
Does Dr. Carmen Manuela Klass do research?
Dmand AI links 1 publication to Dr. Klass.
Who does Dr. Carmen Manuela Klass publish with?
Dr. Klass' most frequent co-authors are Fadlo R. Khuri, MD (1 shared paper), Scott Arthur Kono, DO (1 shared paper) and Nabil F. Saba, MD (1 shared paper).
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