Piangwarin Phaosawasdi, M.D
NPI 1962727123 · Nephrology Physician · Vacaville, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Piangwarin Phaosawasdi, M.D is a Nephrology Physician provider in Vacaville, CA (NPI 1962727123).
Provider details
- NPI number
- 1962727123
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- A124444 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
1,929 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 447 | $112 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 341 | $84 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 290 | $126 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 | 262 | $318 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 230 | $319 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Allopurinol | 291 | 93 |
| Calcitriol | 104 | 40 |
| Dapagliflozin Propanediolbrand: Farxiga | 100 | 26 |
| Empagliflozinbrand: Jardiance | 100 | 31 |
| Carvedilol | 86 | 30 |
| Losartan Potassium | 82 | 31 |
| Calcium Acetate | 59 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$835 across 23 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
- 2010-03-31
- Last updated
- 2018-06-14
Frequently asked questions
- What is Piangwarin Phaosawasdi's NPI number?
- Piangwarin Phaosawasdi's National Provider Identifier (NPI) is 1962727123, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Piangwarin Phaosawasdi's specialty?
- Piangwarin Phaosawasdi is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Piangwarin Phaosawasdi located?
- Piangwarin Phaosawasdi's practice location on file with NPPES is 1360 Burton Dr, Vacaville, CA 95687.
- What is Piangwarin Phaosawasdi's phone number?
- The practice phone number listed in the NPPES registry for Piangwarin Phaosawasdi is (707) 446-4379.
- Does Piangwarin Phaosawasdi accept Medicare?
- Piangwarin Phaosawasdi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Piangwarin Phaosawasdi's NPI active?
- Yes — Piangwarin Phaosawasdi's NPI (1962727123) is active in the NPPES registry as of the last update on 2018-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.