NPPES file of Aug 9, 2026

Carl Tahn, M.D.

Hematology & Oncology Physician · Rockledge, FL

Carl Tahn, M.D. is a hematology & oncology physician with a practice address in Rockledge, Florida, and NPI 1508961319, issued on Sep 14, 2006. Check the license (Florida 89137, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508961319
Name
Carl Tahn
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
89137 FL
0447691 KS
M-2288 GU
2018033152 MO
0101281530 VA
Self-reported in NPPES; status is on the state search
Practice location
107 Longwood Ave, Rockledge, FL 32955
Phone
(321) 636-2111
Enumerated
Sep 14, 2006
Record last updated
Dec 3, 2024
Fax
(321) 636-7180
Medicaid IDs
268516700 FL
Q031435 TN
Medicare enrollment
Enrolled (PECOS I20231019001476); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1991
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 107 Longwood Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lucille BowlesSpeech-Language Assistant1558169565
  2. Taryn Byrnes, COTA/LOccupational Therapy Assistant1184476954
  3. Ashley Ceren, MASpeech-Language Pathologist1659220044
  4. Isaac Esseesse, M.D.Hematology & Oncology Physician1194820019
  5. Kaitlyn Mellick, CF-SLPSpeech-Language Pathologist1063290633
  6. Lorymar MendezSpeech-Language Assistant1275486300

Verify Carl Tahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license 89137
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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37% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

552 Medicare Part D claims for 166 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 41 claims were for opioids.

  1. Carl Tahn552
  2. Specialty average877

Most prescribed

  1. Anastrozole47 claims
  2. Prochlorperazine Maleate41 claims
  3. Gabapentin29 claims
  4. Ondansetron Hcl28 claims
  5. Prednisone28 claims
  6. Levothyroxine Sodium21 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.

Industry payments in 2024: $3,654.16

67 payments; by number, the most common kind was food and beverage; the largest payer was Taiho Oncology, 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.

  1. Carl Tahn$3,654.16
  2. Specialty average$7,481.41

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

  1. Hays Medical Center IncHays, KS

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carl Tahn among 818 hematology & oncology physician records in Florida

Carl Tahn, M.D. is one of 818 hematology & oncology physician records with a practice address in Florida. 84% 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 21% of them.

  • NPI issued2006 · 21% of these records are older, 54% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1991 · median 2003 among the 581 with a school on file
  • Record last updated2024 · 52% 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 Florida 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 Florida

There are 818 hematology & oncology physician records in Florida.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Martin Dietrich, M.D., PH.D.Rockledge, FL 329551669790119
  2. Isaac Esseesse, M.D.Rockledge, FL 329551194820019
  3. Firas Muwalla, MDMerritt Island, FL 329521013979566
  4. William McGarry, M.D.Vero Beach, FL 329601760486005
  5. Moussa Sissoko, MDVero Beach, FL 329601669679809
  6. Nataly Torrejon Guzman, MDVero Beach, FL 329601548812449
  7. Simon Vinarsky, MDVero Beach, FL 329601245268838
  8. Frederick Weeks, M.D.Vero Beach, FL 329601225030471

Common questions

What is Carl Tahn, M.D.'s NPI number?

Carl Tahn, M.D.'s National Provider Identifier (NPI) is 1508961319, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carl Tahn, M.D. located?

The NPPES record lists a practice address at 107 Longwood Ave, Rockledge, FL, 32955. Phone: (321) 636-2111. Providers update this record themselves, so call before visiting.

How can I verify Carl Tahn, M.D.'s license?

NPPES lists Florida license number 89137, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carl Tahn, M.D. prescribe under Medicare Part D?

In 2024, Carl Tahn, M.D. had 552 Medicare Part D claims for 166 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

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.