Mary Barkley, FNP
NPI 1669053765 · Family Nurse Practitioner · Rockford, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Barkley, FNP is a Family Nurse Practitioner provider in Rockford, IL (NPI 1669053765).
Provider details
- NPI number
- 1669053765
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- F01210286 (IA)
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
5 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
1,114 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 High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 441 | $120 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 362 | $120 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 100 | $85 |
| Advance Care Planning, First 30 Minutes99497 | 76 | $59 |
| Advance Care Planning, First 30 Minutes99497 | 40 | $65 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 187 | 30 |
| Levothyroxine Sodium | 184 | 19 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 162 | 46 |
| Atorvastatin Calcium | 141 | 28 |
| Lisinopril | 119 | 19 |
| Apixabanbrand: Eliquis | 118 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-20
- Last updated
- 2021-04-20
- Certified
- 2021-04-20
Frequently asked questions
- What is Mary Barkley's NPI number?
- Mary Barkley's National Provider Identifier (NPI) is 1669053765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Barkley's specialty?
- Mary Barkley is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Barkley located?
- Mary Barkley's practice location on file with NPPES is 3573 Springwheat, Rockford, IL 61114-5628.
- What is Mary Barkley's phone number?
- The practice phone number listed in the NPPES registry for Mary Barkley is (815) 289-3100.
- Does Mary Barkley accept Medicare?
- Mary Barkley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Barkley's NPI active?
- Yes — Mary Barkley's NPI (1669053765) is active in the NPPES registry as of the last update on 2021-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.