Mary Margaret Barkley, FNP
Family Nurse Practitioner · Rockford, IL
Mary Margaret Barkley, FNP is a family nurse practitioner with a practice address in Rockford, Illinois, and NPI 1669053765, issued on Apr 20, 2021. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Margaret Barkley
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- F01210286 IA
Self-reported in NPPES; status is on the state search - Practice location
- 3573 Springwheat, Rockford, IL 61114
- Phone
- (815) 289-3100
- Enumerated
- Apr 20, 2021
- Record last updated
- Apr 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210617002272); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Verify Mary Margaret Barkley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,613 Medicare Part D claims for 179 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 348 claims were for opioids.
Most prescribed
- Furosemide187 claims
- Levothyroxine Sodium184 claims
- Hydrocodone-Acetaminophen162 claims
- Atorvastatin Calcium141 claims
- Lisinopril119 claims
- Eliquis118 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Midwest Post Acute Care Aco PLLCAltoona, IA
- Midwest Post Acute Care PLLCDes Moines, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Margaret Barkley among 7,639 family nurse practitioner records in Illinois
Mary Margaret Barkley, FNP is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 65% of them.
- NPI issued2021 · 65% of these records are older, 28% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2018 among the 4,778 with a school on file
- Record last updated2021 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
236 family nurse practitioner records list a practice address in Rockford
They are 236 of the 3,893 NPPES records with a practice address in Rockford, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Rockford → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Maximilian Button, FNPRockford, IL 611141104234053
- Diana Cary, APRNRockford, IL 611141922512060
- Ashley Evans, APNRockford, IL 611141962056234
- Heather Finnegan, APNPRockford, IL 611141417267832
- Emily Gawaran, NPRockford, IL 611141528429958
- Angela Hawkins, APRNRockford, IL 611141952869943
- Emily Kozak, NPRockford, IL 611141932672276
- Amy Lask, DNP, FNP-BCRockford, IL 611141285103002
Common questions
What is Mary Margaret Barkley, FNP's NPI number?
Mary Margaret Barkley, FNP's National Provider Identifier (NPI) is 1669053765, issued on Apr 20, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mary Margaret Barkley, FNP located?
The NPPES record lists a practice address at 3573 Springwheat, Rockford, IL, 61114. Phone: (815) 289-3100. Providers update this record themselves, so call before visiting.
How can I verify Mary Margaret Barkley, FNP's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Margaret Barkley, FNP prescribe under Medicare Part D?
In 2024, Mary Margaret Barkley, FNP had 4,613 Medicare Part D claims for 179 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.