NPPES file of Aug 9, 2026

Tammy M. Grisham, NP-C

Family Nurse Practitioner · Port St Lucie, FL

Tammy M. Grisham, NP-C is a family nurse practitioner with a practice address in Port St Lucie, Florida, and NPI 1619489473, issued on Nov 1, 2017. Check the license (Florida 9203521, 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
1619489473
Name
Tammy M. Grisham
Credential
NP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
9203521 FL
Self-reported in NPPES; status is on the state search
Practice location
714 NW Leonardo Cir, Port St Lucie, FL 34986
Phone
(954) 448-3913
Enumerated
Nov 1, 2017
Record last updated
Jun 18, 2024
Medicare enrollment
Enrolled (PECOS I20180130002849); may accept 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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Verify Tammy M. Grisham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license 9203521
    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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49% fewer Medicare Part D claims than the average family nurse practitioner in 2024

670 Medicare Part D claims for 168 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Tammy Grisham670
  2. Specialty average1,305

Most prescribed

  1. Trazodone Hcl112 claims
  2. Lorazepam30 claims
  3. Divalproex Sodium26 claims
  4. Mirtazapine23 claims
  5. Alprazolam21 claims
  6. Montelukast Sodium18 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: $44.12

2 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tammy Grisham$44.12
  2. Specialty average$650.95

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. Deno Services IncStuart, FL

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

Tammy M. Grisham among 22,340 family nurse practitioner records in Florida

Tammy M. Grisham, NP-C is one of 22,340 family nurse practitioner records with a practice address in Florida. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 29% of them.

  • NPI issued2017 · 29% of these records are older, 66% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2017 · median 2020 among the 10,790 with a school on file
  • Record last updated2024 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

114 family nurse practitioner records list a practice address in Port St Lucie

They are 114 of the 2,403 NPPES records with a practice address in Port St Lucie, and 22,340 family nurse practitioner records in Florida.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Rosemary Arias, ARNPPort St Lucie, FL 349861023440989
  2. Terese Barr, NPPort St Lucie, FL 349861033115399
  3. Jennifer Burgess, ARNPPort St Lucie, FL 349861912257098
  4. Lois Cassle, ARNPPort St Lucie, FL 349861518375120
  5. Aldene CodlingPort Saint Lucie, FL 349861740450675
  6. Susan Cohen, RN, FNP-BC, PMHNP-BCPort Saint Lucie, FL 349861104156215
  7. Kristin Grunbaum, A.R.N.P.Port St Lucie, FL 349861114110228
  8. Katherine Jones, ARNPPort Saint Lucie, FL 349861992099782

Common questions

What is Tammy M. Grisham, NP-C's NPI number?

Tammy M. Grisham, NP-C's National Provider Identifier (NPI) is 1619489473, issued on Nov 1, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Tammy M. Grisham, NP-C located?

The NPPES record lists a practice address at 714 NW Leonardo Cir, Port St Lucie, FL, 34986. Phone: (954) 448-3913. Providers update this record themselves, so call before visiting.

How can I verify Tammy M. Grisham, NP-C's license?

NPPES lists Florida license number 9203521, 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 Tammy M. Grisham, NP-C prescribe under Medicare Part D?

In 2024, Tammy M. Grisham, NP-C had 670 Medicare Part D claims for 168 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.