NPPES file of Aug 9, 2026

Sylvia Phommalinh, PA-C

Physician Assistant · Gilbert, AZ

Sylvia Phommalinh, PA-C is a physician assistant with a practice address in Gilbert, Arizona, and NPI 1598240731, issued on Oct 3, 2018. Check the license (Arizona 7258, as entered in NPPES) with the Arizona 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598240731
Name
Sylvia Phommalinh
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
7258 AZ
Self-reported in NPPES; status is on the state search
Practice location
3645 S Rome St Ste 201, Gilbert, AZ 85297
Phone
(480) 443-8400
Enumerated
Oct 3, 2018
Record last updated
Jun 13, 2023
Medicare enrollment
Enrolled (PECOS I20181214001571); 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 3645 S Rome St Ste 201

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

  1. Abigail Cole, PA-CPhysician Assistant1144935602
  2. Daniel Kreutz, M.D.Rheumatology Physician1275789877
  3. Joonhee Lim, MDRheumatology Physician1982834321
  4. Shiva Malaty, DORheumatology Physician1255892154
  5. Daniel Peters, PA-CPhysician Assistant1477137446

Verify Sylvia Phommalinh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 7258
    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
Find 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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23% more Medicare Part D claims than the average physician assistant in 2024

1,019 Medicare Part D claims for 315 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Sylvia Phommalinh1,019
  2. Specialty average830

Most prescribed

  1. Hydroxychloroquine Sulfate210 claims
  2. Methotrexate113 claims
  3. Prednisone101 claims
  4. Leflunomide63 claims
  5. Humira(Cf) Pen49 claims
  6. Enbrel Sureclick45 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: $7,687.47

379 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sylvia Phommalinh$7,687.47
  2. Specialty average$841.65

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. Bonhoeffer Rheumatology Institute LLCGilbert, AZ

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

Sylvia Phommalinh among 3,666 physician assistant records in Arizona

Sylvia Phommalinh, PA-C is one of 3,666 physician assistant records with a practice address in Arizona. 77% 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 48% of them.

  • NPI issued2018 · 48% of these records are older, 47% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2018 · median 2018 among the 2,207 with a school on file
  • Record last updated2023 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

237 physician assistant records list a practice address in Gilbert

They are 237 of the 5,802 NPPES records with a practice address in Gilbert, and 3,666 physician assistant records in Arizona.

The 8 physician assistant records with the nearest ZIP codes

  1. Jonathan Bolles, PA-CGilbert, AZ 852971316183338
  2. Katrina Gaines, PA-CGilbert, AZ 852971285943654
  3. Olena Grigutis, PAGilbert, AZ 852971659739704
  4. Jon Holden, PA-CGilbert, AZ 852971174022198
  5. Krystina Holloran, P.A.-CGilbert, AZ 852971417973066
  6. Jesse Lyon, PAGilbert, AZ 852971013431188
  7. Donald Morgenson, PA-SGilbert, AZ 852971598216434
  8. Jamie Pozniak, PA-CGilbert, AZ 852971114438397

Common questions

What is Sylvia Phommalinh, PA-C's NPI number?

Sylvia Phommalinh, PA-C's National Provider Identifier (NPI) is 1598240731, issued on Oct 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sylvia Phommalinh, PA-C located?

The NPPES record lists a practice address at 3645 S Rome St Ste 201, Gilbert, AZ, 85297. Phone: (480) 443-8400. Providers update this record themselves, so call before visiting.

How can I verify Sylvia Phommalinh, PA-C's license?

NPPES lists Arizona license number 7258, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Sylvia Phommalinh, PA-C prescribe under Medicare Part D?

In 2024, Sylvia Phommalinh, PA-C had 1,019 Medicare Part D claims for 315 beneficiaries; the average among physician assistant prescribers was 830. 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.