Mackenzie Lynn Williams, FNP-BC
Family Nurse Practitioner · San Diego, CA
Mackenzie Lynn Williams, FNP-BC is a family nurse practitioner with a practice address in San Diego, California, and NPI 1629581764, issued on Nov 11, 2017. Check the license (California 95007637, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mackenzie Lynn Williams
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95007637 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Nov 11, 2017
- Record last updated
- Jul 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20200713002227); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison A'Court, MDAnesthesiology Physician1912218199
- Benjamin Abbadessa, M.D.Colon & Rectal Surgery Physician1255593612
- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
- Joseph Abdelmalek, M.DNephrology Physician1740485531
- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Mackenzie Lynn Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95007637Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average family nurse practitioner in 2024
206 Medicare Part D claims for 132 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Cephalexin25 claims
- Albuterol Sulfate Hfa19 claims
- Azithromycin18 claims
- Ibuprofen16 claims
- Amoxicillin-Clavulanate Potass15 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 one group practice
- Somagen Healthcare IncSantee, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mackenzie Lynn Williams among 16,966 family nurse practitioner records in California
Mackenzie Lynn Williams, FNP-BC 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 2017, is newer than 40% of them.
- NPI issued2017 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2017 · median 2019 among the 6,793 with a school on file
- 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).
799 family nurse practitioner records list a practice address in San Diego
They are 799 of the 52,937 NPPES records with a practice address in San Diego, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in San Diego → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Jody Adams Renteria, NPSan Diego, CA 921031518935790
- Cynthia Crist, MSN, FNP, APRN-BCSan Diego, CA 921031366657603
- Sondra Ferry, FNPSan Diego, CA 921031346381779
- Donna Gilpatrick, RN, FNPSan Diego, CA 921031295780674
- Lorraine Goodwin, FNPSan Diego, CA 921031114077260
- Sarah Livermore, NPSan Diego, CA 921031720292212
- Barbara Macdonald, CNPSan Diego, CA 921031215974852
- Michael Magner, APRN-CSan Diego, CA 921031922194653
Common questions
What is Mackenzie Lynn Williams, FNP-BC's NPI number?
Mackenzie Lynn Williams, FNP-BC's National Provider Identifier (NPI) is 1629581764, issued on Nov 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mackenzie Lynn Williams, FNP-BC located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Mackenzie Lynn Williams, FNP-BC's license?
NPPES lists California license number 95007637, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mackenzie Lynn Williams, FNP-BC prescribe under Medicare Part D?
In 2024, Mackenzie Lynn Williams, FNP-BC had 206 Medicare Part D claims for 132 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.