NPPES file of Aug 9, 2026

Cassandra Fossler, PA

Medical Physician Assistant · Seguin, TX

Cassandra Fossler, PA is a medical physician assistant with a practice address in Seguin, Texas, and NPI 1154706372, issued on Jul 29, 2015. Check the license with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154706372
Name
Cassandra Fossler
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
Practice location
1414 E Walnut St, Seguin, TX 78155
Phone
(830) 379-7901
Enumerated
Jul 29, 2015
Record last updated
Jul 29, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(830) 401-0737
Medicare enrollment
Enrolled (PECOS I20160122001286); 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.
Download card Updates feed

Also registered at 1414 E Walnut St

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

  1. Molly CatorPediatric Nurse Practitioner1306687710
  2. Amy Long, CPNPPediatric Nurse Practitioner1376823724
  3. Keiko NapierDriver1568083434
  4. James Rider, D.O.Family Medicine Physician1154640993
  5. Alexis Santos, PA-CMedical Physician Assistant1598354599
  6. Linda Sullivan, D.O.Family Medicine Physician1932425089

Verify Cassandra Fossler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this professionCheck 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
Find the Texas 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.4 times the Medicare Part D claims of the average medical physician assistant in 2024

2,773 Medicare Part D claims for 347 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 11 claims were for opioids.

  1. Cassandra Fossler2,773
  2. Specialty average1,148

Most prescribed

  1. Atorvastatin Calcium210 claims
  2. Levothyroxine Sodium178 claims
  3. Metformin Hcl119 claims
  4. Losartan Potassium115 claims
  5. Lisinopril106 claims
  6. Amlodipine Besylate73 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.

The MIPS final score for 2023 (Medicare payment program): 98.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score97.6
  2. Costout of 100 · 30%96.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $93.69

5 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. 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. Cassandra Fossler$93.69
  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. Guadalupe Family Health, PASeguin, TX

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

Cassandra Fossler among 2,146 medical physician assistant records in Texas

Cassandra Fossler, PA is one of 2,146 medical physician assistant records with a practice address in Texas. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 67% of them.

  • NPI issued2015 · 67% of these records are older, 29% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2015 · median 2012 among the 953 with a school on file
  • Record last updated2015 · 57% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Texas

There are 2,146 medical physician assistant records in Texas.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Samantha Gore, PA-CSeguin, TX 781551932573045
  2. Alexis Santos, PA-CSeguin, TX 781551598354599
  3. Arthur Campsey, PA-CSchertz, TX 781541124424734
  4. Laura Garcia, PA-CSchertz, TX 781541124398029
  5. Kelly Heck, PA-CSchertz, TX 781541790075133
  6. Gregory Miller, PA-C, MPASSelma, TX 781541588676449
  7. Julie Rathbun, PA-CSelma, TX 781541639289911
  8. Leon Richardson, PA-CSelma, TX 781541831412311

Common questions

What is Cassandra Fossler, PA's NPI number?

Cassandra Fossler, PA's National Provider Identifier (NPI) is 1154706372, issued on Jul 29, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Fossler, PA located?

The NPPES record lists a practice address at 1414 E Walnut St, Seguin, TX, 78155. Phone: (830) 379-7901. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Fossler, PA's license?

Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Cassandra Fossler, PA prescribe under Medicare Part D?

In 2024, Cassandra Fossler, PA had 2,773 Medicare Part D claims for 347 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Cassandra Fossler, PA's MIPS final score?

The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.