NPPES file of Aug 9, 2026

Mark T. Sinz, PSYD

Clinical Psychologist · Lakeland, FL

Mark T. Sinz, PSYD is a clinical psychologist with a practice address in Lakeland, Florida, and NPI 1366523078, issued on Oct 18, 2006. Check the license (Florida PY 7146, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366523078
Name
Mark T. Sinz
Credential
PSYD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PY 7146 FL
Self-reported in NPPES; status is on the state search
Practice location
4240 Lakeland Highlands RD, Lakeland, FL 33813
Phone
(800) 257-8715
Enumerated
Oct 18, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20051212000177); accepts Medicare assignment
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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8 nearest clinical psychologist records → All 2,980 in Florida → Look up another NPI →

Also registered at 4240 Lakeland Highlands RD

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

  1. Jessica Barrett, PTAPhysical Therapy Assistant1568790475
  2. Johanna Branch, PTAPhysical Therapy Assistant1265665897
  3. Janis Brown, PTAPhysical Therapy Assistant1427290121
  4. Tandria Callins, PH.D., CCC-SLPSpeech-Language Pathologist1487870820
  5. Donna Gellman-Rodriguez, PSY.D.Clinical Psychologist1467566992
  6. Kimberly Hamm, COTA/LOccupational Therapy Assistant1912135088

Verify Mark T. Sinz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license PY 7146    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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Bills Medicare through one group practice

  1. Transformative Healthcare Solutions IncFort Lauderdale, FL

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

Mark T. Sinz among 2,980 clinical psychologist records in Florida

Mark T. Sinz, PSYD is one of 2,980 clinical psychologist records with a practice address in Florida. 14% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 74% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 26% of these records are
  • Graduated1995 · median 2004 among the 773 with a school on file
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Florida

There are 2,980 clinical psychologist records in Florida.

All 2,980 in Florida → Every provider in Lakeland → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Kristen Fabrizi, PSYDLakeland, FL 338131609398379
  2. Dainery Fuentes, PH.D.Lakeland, FL 338131104949452
  3. Donna Gellman-Rodriguez, PSY.D.Lakeland, FL 338131467566992
  4. Stuart Greif, PSY.D.Lakeland, FL 338131881626521
  5. Kristen Hudacek, PSY.D.Lakeland, FL 338131366650798
  6. Suzanne Lavelle, PSY.D.Lakeland, FL 338131952594806
  7. Sara Malowitz, PSY.D.Lakeland, FL 338131972087799
  8. Kristin Muller, PSYDLakeland, FL 338131255014981

Common questions

What is Mark T. Sinz, PSYD's NPI number?

Mark T. Sinz, PSYD's National Provider Identifier (NPI) is 1366523078, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark T. Sinz, PSYD located?

The NPPES record lists a practice address at 4240 Lakeland Highlands RD, Lakeland, FL, 33813. Phone: (800) 257-8715. Providers update this record themselves, so call before visiting.

How can I verify Mark T. Sinz, PSYD's license?

NPPES lists Florida license number PY 7146, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.