NPPES file of Aug 9, 2026

Kathleen Brewer Grissett, MD

Psychiatry Physician · Orange Park, FL

Kathleen Brewer Grissett, MD is a psychiatry physician with a practice address in Orange Park, Florida, and NPI 1821170085, issued on Oct 19, 2006. Check the license (Florida ME100502, 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
1821170085
Name
Kathleen Brewer Grissett
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
ME100502 FL
25835 SC
Self-reported in NPPES; status is on the state search
Practice location
165 Wells RD, Orange Park, FL 32073
Phone
(904) 269-7200
Enumerated
Oct 19, 2006
Record last updated
Oct 16, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090122000693); accepts Medicare assignment
Medical or professional school
University Of South Florida College Of Medicine, 2003
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 165 Wells RD

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

  1. Vikram Behera, M.D.Internal Medicine Physician1134337892
  2. Addisbell EspinosaDevelopmental Therapist1093444218
  3. Stephanie Milne, PSY.D.Clinical Neuropsychologist1659624609
  4. Almany ParsonsDevelopmental Therapist1396306791
  5. Carla Schlenke, ARNPPsychiatric/Mental Health Nurse Practitioner1720101892
  6. Michael Sevick, FNPFamily Nurse Practitioner1851940613

Verify Kathleen Brewer Grissett in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME100502
    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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52% more Medicare Part D claims than the average psychiatry physician in 2024

1,521 Medicare Part D claims for 78 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Kathleen Grissett1,521
  2. Specialty average1,000

Most prescribed

  1. Alprazolam110 claims
  2. Trazodone Hcl81 claims
  3. Bupropion Xl61 claims
  4. Fluoxetine Hcl55 claims
  5. Dextroamphetamine-Amphetamine54 claims
  6. Diazepam53 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: $3,573.47

175 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Grissett$3,573.47
  2. Specialty average$4,954.93

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. First Coast Mental Health P AOrange Park, FL

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

Kathleen Brewer Grissett among 2,744 psychiatry physician records in Florida

Kathleen Brewer Grissett, MD is one of 2,744 psychiatry physician records with a practice address in Florida. 72% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated2003 · median 2003 among the 1,283 with a school on file
  • Record last updated2013 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 psychiatry physician records list a practice address in Orange Park

They are 21 of the 2,099 NPPES records with a practice address in Orange Park, and 2,744 psychiatry physician records in Florida.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Quang-Trung Dang, DOOrange Park, FL 320731073923306
  2. Anika Forbes, D.O.Orange Park, FL 320731568690220
  3. James Free, D.O.Orange Park, FL 320731396278198
  4. Larry Garsha, M.D.Orange Park, FL 320731003817925
  5. Joan Hyland, DOOrange Park, FL 320731417534165
  6. Suhas Joshi, M.D.Orange Park, FL 320731194747485
  7. Ubaid Khokhar, MDOrange Park, FL 320731275713935
  8. Mohsin RazaOrange Park, FL 320731790244689

Common questions

What is Kathleen Brewer Grissett, MD's NPI number?

Kathleen Brewer Grissett, MD's National Provider Identifier (NPI) is 1821170085, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Brewer Grissett, MD located?

The NPPES record lists a practice address at 165 Wells RD, Orange Park, FL, 32073. Phone: (904) 269-7200. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Brewer Grissett, MD's license?

NPPES lists Florida license number ME100502, 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 Kathleen Brewer Grissett, MD prescribe under Medicare Part D?

In 2024, Kathleen Brewer Grissett, MD had 1,521 Medicare Part D claims for 78 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.