Sylvia Phommalinh, PA-C
NPI 1598240731 · Physician Assistant · Gilbert, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sylvia Phommalinh, PA-C is a Physician Assistant provider in Gilbert, AZ (NPI 1598240731).
Provider details
- NPI number
- 1598240731
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 7258 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
892 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Measurement of Antibody for Assessment of Autoimmune Disorder, Any Method86235 | 297 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 100 | $104 |
| Beta 2 Glycoprotein 1 Antibody (autoantibody) Measurement86146 | 93 | $25 |
| Cardiolipin Antibody (tissue Antibody) Measurement86147 | 93 | $25 |
| Analysis of Substance Using Immunoassay Technique, Multiple Step Method83516 | 62 | $11 |
| Measurement of Dna Antibody, Native Or Double Stranded86225 | 33 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 210 | 114 |
| Methotrexate Sodiumbrand: Methotrexate | 113 | 60 |
| Prednisone | 101 | 52 |
| Leflunomide | 63 | 31 |
| Adalimumabbrand: Humira(cf) Pen | 49 | — |
| Etanerceptbrand: Enbrel Sureclick | 45 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,687 across 379 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-10-03
- Last updated
- 2023-06-13
- Certified
- 2023-06-13
Frequently asked questions
- What is Sylvia Phommalinh's NPI number?
- Sylvia Phommalinh's National Provider Identifier (NPI) is 1598240731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylvia Phommalinh's specialty?
- Sylvia Phommalinh is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sylvia Phommalinh located?
- Sylvia Phommalinh's practice location on file with NPPES is 3645 S Rome St Ste 201, Gilbert, AZ 85297-7338.
- What is Sylvia Phommalinh's phone number?
- The practice phone number listed in the NPPES registry for Sylvia Phommalinh is (480) 443-8400.
- Does Sylvia Phommalinh accept Medicare?
- Sylvia Phommalinh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sylvia Phommalinh's NPI active?
- Yes — Sylvia Phommalinh's NPI (1598240731) is active in the NPPES registry as of the last update on 2023-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.