NPPES file of Aug 9, 2026

Angelita Lynnette Poston Seitz, FNP-C

Infectious Disease Physician · Tucson, AZ

Angelita Lynnette Poston Seitz, FNP-C is an infectious disease physician with a practice address in Tucson, Arizona, and NPI 1063984029, issued on Dec 31, 2018. Check the license (Arizona 250526, as entered in NPPES) 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
1063984029
Name
Angelita Lynnette Poston Seitz
Credential
FNP-C
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
250526 AZ
220526 AZ
Self-reported in NPPES; status is on the state search
Practice location
1230 S Cherrybell Stra, Tucson, AZ 85713
Phone
(520) 670-3909
Enumerated
Dec 31, 2018
Record last updated
Mar 25, 2025
Fax
(520) 309-2560
Medicare enrollment
Enrolled (PECOS I20190808002205); 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.
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Also registered at 1230 S Cherrybell Stra

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

  1. Rachel Abel, LCSW, MSClinical Social Worker1205167442
  2. Robin Acereto, LPCProfessional Counselor1609373026
  3. Nelda Akinbile, M.D.Psychiatry Physician1023112745
  4. Jessica Barnes, LCSWClinical Social Worker1548836992
  5. Jennifer Barrabee, LCSWClinical Social Worker1154691350
  6. Thomas Bartuska, MDPsychiatry Physician1801972245

Verify Angelita Lynnette Poston Seitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 250526
    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 Arizona 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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5.1 times the Medicare Part D claims of the average infectious disease physician in 2024

3,547 Medicare Part D claims for 174 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Angelita Poston Seitz3,547
  2. Specialty average689

Most prescribed

  1. Biktarvy248 claims
  2. Triumeq171 claims
  3. Descovy128 claims
  4. Atorvastatin Calcium127 claims
  5. Lisinopril112 claims
  6. Gabapentin96 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: $122.06

1 payment: food and beverage; the largest payer was ViiV Healthcare Company. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Angelita Poston Seitz$122.06
  2. Specialty average$4,362.19

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. EL Rio Santa Cruz Neighborhood Health Center, Inc.Tucson, AZ

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

Angelita Lynnette Poston Seitz among 176 infectious disease physician records in Arizona

Angelita Lynnette Poston Seitz, FNP-C is one of 176 infectious disease physician records with a practice address in Arizona. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.

  • NPI issued2018 · 82% of these records are older, 13% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2018 · median 2001 among the 122 with a school on file
  • Record last updated2025 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Arizona

There are 176 infectious disease physician records in Arizona.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Sudha Nagalingam, M.D.Tucson, AZ 857131811126303
  2. Carlos Perez-Velez, M.D.Tucson, AZ 857131104972728
  3. Denisse Ramirez, MDTucson, AZ 857131205331428
  4. Andrea Giblin, D.O.Tucson, AZ 857121932377801
  5. Robert Hyland, M.D.Tucson, AZ 857121104855832
  6. Clifford Martin, MDTucson, AZ 857121760429864
  7. Marcelo Nasif, M.D.Tucson, AZ 857121912936907
  8. Steven Oscherwitz, MDTucson, AZ 857121336113539

Common questions

What is Angelita Lynnette Poston Seitz, FNP-C's NPI number?

Angelita Lynnette Poston Seitz, FNP-C's National Provider Identifier (NPI) is 1063984029, issued on Dec 31, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Angelita Lynnette Poston Seitz, FNP-C located?

The NPPES record lists a practice address at 1230 S Cherrybell Stra, Tucson, AZ, 85713. Phone: (520) 670-3909. Providers update this record themselves, so call before visiting.

How can I verify Angelita Lynnette Poston Seitz, FNP-C's license?

NPPES lists Arizona license number 250526, as entered by the provider. 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 Angelita Lynnette Poston Seitz, FNP-C prescribe under Medicare Part D?

In 2024, Angelita Lynnette Poston Seitz, FNP-C had 3,547 Medicare Part D claims for 174 beneficiaries; the average among infectious disease physician prescribers was 689. 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.