Maria Joana Thomas, MD
NPI 1205241122 · Nephrology Physician · Folsom, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Joana Thomas, MD is a Nephrology Physician provider in Folsom, CA (NPI 1205241122).
Provider details
- NPI number
- 1205241122
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD191182 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,435 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Dialysis Services, Per Day, Less Than Full Month Service (20 Years Or Older)90970 | 350 | $10 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 336 | $320 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 188 | $125 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 167 | $128 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 161 | $85 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 105 | 44 |
| Hydralazine Hcl | 94 | 34 |
| Furosemide | 78 | 30 |
| Parenteral Amino Acid 20% No.1brand: Prosol | 75 | — |
| Tenapanor Hclbrand: Xphozah | 63 | — |
| Losartan Potassium | 63 | 30 |
| Calcium Acetate | 57 | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-30
- Last updated
- 2025-06-13
- Certified
- 2025-06-13
Frequently asked questions
- What is Maria Joana Thomas's NPI number?
- Maria Joana Thomas's National Provider Identifier (NPI) is 1205241122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Joana Thomas's specialty?
- Maria Joana Thomas is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Joana Thomas located?
- Maria Joana Thomas's practice location on file with NPPES is 1600 Creekside Dr Ste 3600, Folsom, CA 95630-3446.
- What is Maria Joana Thomas's phone number?
- The practice phone number listed in the NPPES registry for Maria Joana Thomas is (916) 235-7790.
- Does Maria Joana Thomas accept Medicare?
- Maria Joana Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Joana Thomas's NPI active?
- Yes — Maria Joana Thomas's NPI (1205241122) is active in the NPPES registry as of the last update on 2025-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.