Mary Baker, FNP
NPI 1942626577 · Family Nurse Practitioner · Downers Grove, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Baker, FNP is a Family Nurse Practitioner provider in Downers Grove, IL (NPI 1942626577).
Provider details
- NPI number
- 1942626577
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209.010902 (IL)
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
12 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
77 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 38 | $108 |
| Advance Care Planning, First 30 Minutes99497 | 14 | $72 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 13 | $162 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 12 | $133 |
Typical Medicare-allowed amounts for these services range $72–$162 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 44 | 18 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 35 | 13 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 33 | 13 |
| Atorvastatin Calcium | 32 | 18 |
| Pantoprazole Sodium | 32 | 15 |
| Apixabanbrand: Eliquis | 30 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-03-06
- Last updated
- 2022-05-17
- Certified
- 2022-05-17
Frequently asked questions
- What is Mary Baker's NPI number?
- Mary Baker's National Provider Identifier (NPI) is 1942626577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Baker's specialty?
- Mary Baker is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Baker located?
- Mary Baker's practice location on file with NPPES is 1441 Branding Ave Ste 310, Downers Grove, IL 60515-5624.
- What is Mary Baker's phone number?
- The practice phone number listed in the NPPES registry for Mary Baker is (630) 829-1038.
- Does Mary Baker accept Medicare?
- Mary Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Baker's NPI active?
- Yes — Mary Baker's NPI (1942626577) is active in the NPPES registry as of the last update on 2022-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.