Margaret Baker, PA-C
NPI 1881858157 · Physician Assistant · Union Grove, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Baker, PA-C is a Physician Assistant provider in Union Grove, WI (NPI 1881858157).
Provider details
- NPI number
- 1881858157
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 2300-023 (WI)
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
17 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
471 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 273 | $85 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 60 | $157 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 48 | $86 |
| Care Management Services for Behavioral Health Conditions, 20 Minutes Or More Clinical Staff Time Directed By Health Care Professional99484 | 29 | $44 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 28 | $101 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 98 | 20 |
| Quetiapine Fumarate | 74 | 18 |
| Buspirone Hcl | 63 | 13 |
| Mirtazapine | 62 | 15 |
| Divalproex Sodium | 44 | 13 |
| Venlafaxine Hcl | 29 | — |
| Olanzapine | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-15
- Last updated
- 2024-02-29
- Certified
- 2024-02-29
Frequently asked questions
- What is Margaret Baker's NPI number?
- Margaret Baker's National Provider Identifier (NPI) is 1881858157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Baker's specialty?
- Margaret Baker is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Baker located?
- Margaret Baker's practice location on file with NPPES is 1120 Main St, Union Grove, WI 53182-1328.
- What is Margaret Baker's phone number?
- The practice phone number listed in the NPPES registry for Margaret Baker is (262) 878-4424.
- Does Margaret Baker accept Medicare?
- Margaret Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Baker's NPI active?
- Yes — Margaret Baker's NPI (1881858157) is active in the NPPES registry as of the last update on 2024-02-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.