NPPES file of Aug 9, 2026

Stephanie Dieffenthaller

Medical Physician Assistant · Largo, FL

Stephanie Dieffenthaller is a medical physician assistant with a practice address in Largo, Florida, and NPI 1922643345, issued on Nov 8, 2019. Check the license (Florida PA9112980, 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
1922643345
Name
Stephanie Dieffenthaller
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA9112980 FL
Self-reported in NPPES; status is on the state search
Practice location
8787 Bryan Dairy RD Ste 250, Largo, FL 33777
Phone
(727) 391-6296
Enumerated
Nov 8, 2019
Record last updated
Apr 3, 2023
Fax
(813) 635-7940
Medicaid ID
116213700 FL
Medicare enrollment
Enrolled (PECOS I20200817000412); accepts Medicare assignment
Medical or professional school
Univ Of Central Florida, College Of Medicine, 2016
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 8787 Bryan Dairy RD Ste 250

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

  1. Laura Given, M.D.Family Medicine Physician1992230262
  2. Laura Hinchee, ARNPNurse Practitioner1194271429
  3. Scott Jones, M.D.Family Medicine Physician1629049895
  4. Lilibeth Menke, D.O.Family Medicine Physician1679921845
  5. Tatianna Pizzutto, MDFamily Medicine Physician1952807117
  6. Jessica Ray, PA-CMedical Physician Assistant1871835652

Verify Stephanie Dieffenthaller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license PA9112980
    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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4% more Medicare Part D claims than the average medical physician assistant in 2024

1,196 Medicare Part D claims for 427 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Stephanie Dieffenthaller1,196
  2. Specialty average1,148

Most prescribed

  1. Levothyroxine Sodium68 claims
  2. Atorvastatin Calcium54 claims
  3. Losartan Potassium46 claims
  4. Amlodipine Besylate42 claims
  5. Methylprednisolone39 claims
  6. Rosuvastatin Calcium38 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: $181.45

8 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephanie Dieffenthaller$181.45
  2. Specialty average$1,055.00

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. Baycare Medical Group, Inc.Clearwater, FL

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

Stephanie Dieffenthaller among 2,776 medical physician assistant records in Florida

Stephanie Dieffenthaller is one of 2,776 medical physician assistant records with a practice address in Florida. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 76% of them.

  • NPI issued2019 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2016 · median 2013 among the 1,278 with a school on file
  • Record last updated2023 · 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 363AM0700X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 medical physician assistant records list a practice address in Largo

They are 37 of the 2,280 NPPES records with a practice address in Largo, and 2,776 medical physician assistant records in Florida.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Christina Baden, PA-CLargo, FL 337771750895140
  2. Jessica Ray, PA-CLargo, FL 337771871835652
  3. Charles Shimer, PA CSeminole, FL 337771952307167
  4. Whitney Boyd, PALargo, FL 337741306272034
  5. Dana Brendel, P.A.Largo, FL 337741821283102
  6. Sharon Garry, PA-CLargo, FL 337741710366406
  7. David GonnellaLargo, FL 337741760834386
  8. Michael Henderson, PA-CLargo, FL 337741558523951

Common questions

What is Stephanie Dieffenthaller's NPI number?

Stephanie Dieffenthaller's National Provider Identifier (NPI) is 1922643345, issued on Nov 8, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Dieffenthaller located?

The NPPES record lists a practice address at 8787 Bryan Dairy RD Ste 250, Largo, FL, 33777. Phone: (727) 391-6296. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Dieffenthaller's license?

NPPES lists Florida license number PA9112980, 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 Stephanie Dieffenthaller prescribe under Medicare Part D?

In 2024, Stephanie Dieffenthaller had 1,196 Medicare Part D claims for 427 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.