Clarissa Geyer, M.D.
Hematology & Oncology Physician · Morristown, TN
Clarissa Geyer, M.D. is a hematology & oncology physician with a practice address in Morristown, Tennessee, and NPI 1528264223, issued on Jun 21, 2007. Check the license on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Clarissa Geyer
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- Practice location
- 908 W 4TH North St, Morristown, TN 37814
- Phone
- (423) 522-4900
- Enumerated
- Jun 21, 2007
- Entity
- Type 1 · individual
Also registered at 908 W 4TH North St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Abernathy, MDMedical Physician Assistant1427146539
- Sajid Ahmed, MDMedical Oncology Physician1497858591
- Matthew Allison, M.D.Internal Medicine Physician1245680933
- Kimberly Arrowood, ANP-BC, GNP-BCGerontology Nurse Practitioner1164677647
- Sarah Barnard, RNRegistered Nurse1982546362
- Frank Beuerlein, MDCytopathology Physician1487623484
Verify Clarissa Geyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
28% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
637 Medicare Part D claims for 81 beneficiaries, against an average of 885 among the 8,428 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Anastrozole48 claims
- Levothyroxine Sodium47 claims
- Eliquis45 claims
- Promethazine Hcl35 claims
- Potassium Chloride32 claims
- Hydroxyurea29 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 Medicare quality score for 2023: 95.7 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: $1,970.55
88 payments, mostly food and beverage; the largest payer was Celgene Corporation. The 6,678 providers of this specialty with any payment received $7,643.36 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.
One hospital or facility affiliation
- University Health System, Inc.Knoxville, TN
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Hematology & Oncology Physician providers in Tennessee
There are 225 hematology & oncology physician records in Tennessee.
Other hematology & oncology physician records in Tennessee
- Jonathan Abbas, MDNashville, TN1316145253
- Feras Abdul Khalek, M.D.Sevierville, TN1497079008
- Mohammed Amine Achhal El Kadmiri, M.D.Nashville, TN1457614778
- Nimesh Adhikari, MDKingsport, TN1417470832
- Omar Ahmad, M.D.Millington, TN1093779456
- Bilawal Ahmed, MDMemphis, TN1164837829
- Tamjeed Ahmed, M.D.Gallatin, TN1235420316
- Ali Akram, MDKnoxville, TN1922664812
- David Aljadir, M.D.Knoxville, TN1922201136
- Suneetha Amara, M.D.Nashville, TN1699088096
Common questions
What is Clarissa Geyer, M.D.'s NPI number?
Clarissa Geyer, M.D.'s National Provider Identifier (NPI) is 1528264223, issued on Jun 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Clarissa Geyer, M.D. located?
The NPPES record lists a practice address at 908 W 4TH North St, Morristown, TN, 37814. Phone: (423) 522-4900. Providers update this record themselves, so call before visiting.
How can I verify Clarissa Geyer, M.D.'s license?
Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clarissa Geyer, M.D. prescribe under Medicare Part D?
In 2024, Clarissa Geyer, M.D. had 637 Medicare Part D claims for 81 beneficiaries; the average among hematology & oncology physician prescribers was 885. Part D covers Medicare prescriptions only.
What is Clarissa Geyer, M.D.'s Medicare quality score?
The 2023 MIPS final score is 95.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.