John Martin Cassidy, M.D.
Internal Medicine Physician · Germantown, TN
John Martin Cassidy, M.D. is an internal medicine physician with a practice address in Germantown, Tennessee, and NPI 1134531106, issued on May 27, 2014. Check the license (Tennessee 56106, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Martin Cassidy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 56106 TN
Self-reported in NPPES; status is on the state search - Practice location
- 7715 Wolf River Blvd, Germantown, TN 38138
- Phone
- (901) 328-6031
- Enumerated
- May 27, 2014
- Record last updated
- Jun 25, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (901) 328-6035
- Medicare enrollment
- Enrolled (PECOS I20180801002828); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 7715 Wolf River Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aprille Abston-Turns, F.N.P.Nurse Practitioner1669547634
- Stephanie Cochran, APNNurse Practitioner1770877821
- Amanda Comer, N.P.Family Nurse Practitioner1467616565
- William Light, M.D.Internal Medicine Physician1881646099
- Virginia McGhee, WHNPWomen's Health Nurse Practitioner1356732341
- Mary Simpson, NPFamily Nurse Practitioner1023181864
Verify John Martin Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 56106Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average internal medicine physician in 2024
6,066 Medicare Part D claims for 488 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 77 claims were for opioids.
Most prescribed
- Atorvastatin Calcium380 claims
- Amlodipine Besylate246 claims
- Omeprazole160 claims
- Rosuvastatin Calcium158 claims
- Losartan Potassium152 claims
- Levothyroxine Sodium142 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,704.98
156 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Baptist Memorial Medical Group, Inc.Atoka, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
61 internal medicine physician records list a practice address in Germantown
They are 61 of the 1,692 NPPES records with a practice address in Germantown, and 2,596 internal medicine physician records in Tennessee.
All 61 in Germantown → All 2,596 in Tennessee → Every provider in Germantown →
Other internal medicine physician records in Tennessee
- John Aaron, MDClarksville, TN1629019922
- Damon Abaray, MDNashville, TN1275680134
- Samuel Abbas, MDHixson, TN1497105373
- Matthew Abbate, MDNashville, TN1982796306
- Sarmed Abdullah, M.D.Lexington, TN1588755359
- Temidayo Abe, MDNashville, TN1366947798
- Ahad Abid, MDNashville, TN1316500176
- Mouna Abouamara, MDJohnson City, TN1447324603
- Betty Abraham, MDChattanooga, TN1093923633
- Rawan Abu-Zeitoon, M.DKingsport, TN1265621072
Common questions
What is John Martin Cassidy, M.D.'s NPI number?
John Martin Cassidy, M.D.'s National Provider Identifier (NPI) is 1134531106, issued on May 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John Martin Cassidy, M.D. located?
The NPPES record lists a practice address at 7715 Wolf River Blvd, Germantown, TN, 38138. Phone: (901) 328-6031. Providers update this record themselves, so call before visiting.
How can I verify John Martin Cassidy, M.D.'s license?
NPPES lists Tennessee license number 56106, as entered by the provider. 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 John Martin Cassidy, M.D. prescribe under Medicare Part D?
In 2024, John Martin Cassidy, M.D. had 6,066 Medicare Part D claims for 488 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John Martin Cassidy, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. 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.