NPPES file of Aug 9, 2026

Hillary P. Seematter, MD

Emergency Medical Services (Emergency Medicine) Physician · Mesa, AZ

Hillary P. Seematter, MD is an emergency medical services (emergency medicine) physician with a practice address in Mesa, Arizona, and NPI 1053310052, issued on Jul 20, 2005. Check the license on the Arizona Medical Board; 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
1053310052
Name
Hillary P. Seematter
Credential
MD
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
2002007681 MO
Self-reported in NPPES; status is on the state search
Practice location
1910 S Gilbert RD, Mesa, AZ 85204
Phone
(480) 410-6150
Enumerated
Jul 20, 2005
Record last updated
Jan 21, 2026
Medicaid IDs
100421290A KS
205937907 MO
Medicare enrollment
Enrolled (PECOS I20150311000177); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 1998
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 Hillary P. Seematter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical BoardCheck 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 Arizona license search

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78% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024

63 Medicare Part D claims for 43 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.

  1. Hillary Seematter63
  2. Specialty average292

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.

Bills Medicare through one group practice

  1. Tec Emergency Physicians OF Arizona, LLCGilbert, AZ

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

Hillary P. Seematter among 58 emergency medical services (emergency medicine) physician records in Arizona

Hillary P. Seematter, MD is one of 58 emergency medical services (emergency medicine) physician records with a practice address in Arizona. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 97% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated1998 · median 2003 among the 25 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in Arizona

There are 58 emergency medical services (emergency medicine) physician records in Arizona.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Cristian Patterson, D.OMesa, AZ 852061871971598
  2. Darrin Forsyth, CEPCasa Grande, AZ 851931346900537
  3. Donald Aviano, M.D.Chandler, AZ 852241376596098
  4. Robert Barrali, M.D.Chandler, AZ 852241699720789
  5. Antonio Davila, M.D.Chandler, AZ 852241457395253
  6. Ryan Frank, D.O.Chandler, AZ 852241093818940
  7. Alice Lee, M.D.Chandler, AZ 852241679517478
  8. Michele Shackelford, M.D.Chandler, AZ 852241811079940

Common questions

What is Hillary P. Seematter, MD's NPI number?

Hillary P. Seematter, MD's National Provider Identifier (NPI) is 1053310052, issued on Jul 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Hillary P. Seematter, MD located?

The NPPES record lists a practice address at 1910 S Gilbert RD, Mesa, AZ, 85204. Phone: (480) 410-6150. Providers update this record themselves, so call before visiting.

How can I verify Hillary P. Seematter, MD's license?

Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hillary P. Seematter, MD prescribe under Medicare Part D?

In 2024, Hillary P. Seematter, MD had 63 Medicare Part D claims for 43 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.