Ann Thomas, MD
NPI 1821061607 · Nephrology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Thomas, MD is a Nephrology Physician provider in Scottsdale, AZ (NPI 1821061607).
Provider details
- NPI number
- 1821061607
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 27537 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,407 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 888 | $113 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 462 | $124 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 419 | $174 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 179 | $165 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 145 | $347 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Allopurinol | 240 | 83 |
| Calcitriol | 216 | 66 |
| Furosemide | 135 | 56 |
| Hydralazine Hcl | 88 | 26 |
| Losartan Potassium | 52 | 14 |
| Spironolactone | 44 | 17 |
| Patiromer Calcium Sorbitexbrand: Veltassa | 41 | 14 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,276 across 70 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
- 2006-02-10
- Last updated
- 2018-06-28
Frequently asked questions
- What is Ann Thomas's NPI number?
- Ann Thomas's National Provider Identifier (NPI) is 1821061607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Thomas's specialty?
- Ann Thomas is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Thomas located?
- Ann Thomas's practice location on file with NPPES is 8415 N Pima Rd, Scottsdale, AZ 85258-0000.
- What is Ann Thomas's phone number?
- The practice phone number listed in the NPPES registry for Ann Thomas is (480) 551-1057.
- Does Ann Thomas accept Medicare?
- Ann Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Thomas's NPI active?
- Yes — Ann Thomas's NPI (1821061607) is active in the NPPES registry as of the last update on 2018-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.