Mary Susan Buffington, NP-C
Family Nurse Practitioner · Winterhaven, CA
Mary Susan Buffington, NP-C is a family nurse practitioner with a practice address in Winterhaven, California, and NPI 1699858472, issued on Oct 23, 2006. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Susan Buffington
- Credential
- NP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN083233 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2133 Winterhaven Drive, Winterhaven, CA 92283
- Phone
- (760) 572-2700
- Enumerated
- Oct 23, 2006
- Record last updated
- Jan 3, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080728000296); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 2133 Winterhaven Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lawrence Frost, PA-CMedical Physician Assistant1780616870
- Barbara Wallner, F.N.P.Family Nurse Practitioner1548344856
Verify Mary Susan Buffington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California 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
84% fewer Medicare Part D claims than the average family nurse practitioner in 2024
203 Medicare Part D claims for 24 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Lorazepam44 claims
- Oxycodone Hcl26 claims
- Gabapentin13 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
- Nextcare Arizona I JV LLCYuma, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 family nurse practitioner records list a practice address in Winterhaven
They are 4 of the 90 NPPES records with a practice address in Winterhaven, and 16,966 family nurse practitioner records in California.
All 4 in Winterhaven → All 16,966 in California → Every provider in Winterhaven →
Other family nurse practitioner records in California
- Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
- Joshua AaronMission Hills, CA1477291805
- Orly Aaron, NPSan Francisco, CA1376912451
- Paris Gilbert Russ AaronSacramento, CA1871079111
- Tiffanne Aaronsen, FNPIndio, CA1568191807
- Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
- Frances Abad, FNPLos Angeles, CA1053504514
- Nnenna AbaezeLong Beach, CA1457820763
- Raymond Abagat, FNPTorrance, CA1306685821
- Ashley AbalCastaic, CA1740140698
Common questions
What is Mary Susan Buffington, NP-C's NPI number?
Mary Susan Buffington, NP-C's National Provider Identifier (NPI) is 1699858472, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Susan Buffington, NP-C located?
The NPPES record lists a practice address at 2133 Winterhaven Drive, Winterhaven, CA, 92283. Phone: (760) 572-2700. Providers update this record themselves, so call before visiting.
How can I verify Mary Susan Buffington, NP-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Susan Buffington, NP-C prescribe under Medicare Part D?
In 2024, Mary Susan Buffington, NP-C had 203 Medicare Part D claims for 24 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.