Margaret Lynn Mackey, F.N.P.
Family Nurse Practitioner · Napa, CA
Margaret Lynn Mackey, F.N.P. is a family nurse practitioner with a practice address in Napa, California, and NPI 1073717492, issued on Jun 11, 2007. Check the license (California NP13750, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Lynn Mackey
- Credential
- F.N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP13750 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3010 Beard RD, Napa, CA 94558
- Phone
- (707) 257-1550
- Enumerated
- Jun 11, 2007
- Record last updated
- Jul 19, 2022
- Fax
- (707) 819-9014
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 3010 Beard RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Holly Laird, NP-CNurse Practitioner1689348963
Verify Margaret Lynn Mackey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP13750Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family nurse practitioner in 2024
107 Medicare Part D claims for 25 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium14 claims
- Amlodipine Besylate12 claims
- Lisinopril12 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.
Margaret Lynn Mackey among 16,966 family nurse practitioner records in California
Margaret Lynn Mackey, F.N.P. is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 7% of them.
- NPI issued2007 · 7% of these records are older, 87% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2022 · 42% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 family nurse practitioner records list a practice address in Napa
They are 46 of the 3,583 NPPES records with a practice address in Napa, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Napa → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Janice Ankenmann, F.N.P.Napa, CA 945581891908232
- Judith Hall, FNPNapa, CA 945581992806178
- Beatrice Labastida, FNPNapa, CA 945581902832694
- Claudia MonteeNapa, CA 945581588772313
- Deborah Morrissey, FNPNapa, CA 945581710051297
- Crissie Moulyn, FNPNapa, CA 945581649490459
- Sheryle Paukert, N.P.Napa, CA 945581356550008
- Charlene Reilly, FNPNapa, CA 945581790721553
Common questions
What is Margaret Lynn Mackey, F.N.P.'s NPI number?
Margaret Lynn Mackey, F.N.P.'s National Provider Identifier (NPI) is 1073717492, issued on Jun 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Lynn Mackey, F.N.P. located?
The NPPES record lists a practice address at 3010 Beard RD, Napa, CA, 94558. Phone: (707) 257-1550. Providers update this record themselves, so call before visiting.
How can I verify Margaret Lynn Mackey, F.N.P.'s license?
NPPES lists California license number NP13750, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Lynn Mackey, F.N.P. prescribe under Medicare Part D?
In 2024, Margaret Lynn Mackey, F.N.P. had 107 Medicare Part D claims for 25 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.