Maria Theresa Wyson, MSN, FNP-C
NPI 1861769648 · Family Nurse Practitioner · Elk Grove, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Theresa Wyson, MSN, FNP-C is a Family Nurse Practitioner provider in Elk Grove, CA (NPI 1861769648).
Provider details
- NPI number
- 1861769648
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 21360 (CA)
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 tenure28% of score
14 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
270 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 66 | $149 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $115 |
| Automated Urinalysis Test81003 | 36 | $2 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 32 | $99 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $80 |
| X-Ray of Chest, 2 Views71046 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 44 | 43 |
| Cephalexin | 38 | 35 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 33 | 32 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 28 | 27 |
| Amoxicillin | 13 | 13 |
| Ciprofloxacin Hcl | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-11-22
- Last updated
- 2023-03-07
- Certified
- 2021-10-01
Frequently asked questions
- What is Maria Theresa Wyson's NPI number?
- Maria Theresa Wyson's National Provider Identifier (NPI) is 1861769648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Theresa Wyson's specialty?
- Maria Theresa Wyson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Theresa Wyson located?
- Maria Theresa Wyson's practice location on file with NPPES is 7811 Laguna Blvd Ste 161, Elk Grove, CA 95758-7949.
- What is Maria Theresa Wyson's phone number?
- The practice phone number listed in the NPPES registry for Maria Theresa Wyson is (916) 877-7778.
- Does Maria Theresa Wyson accept Medicare?
- Maria Theresa Wyson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Theresa Wyson's NPI active?
- Yes — Maria Theresa Wyson's NPI (1861769648) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.