David Mark Chaffee
Family Nurse Practitioner · Oceanside, CA
David Mark Chaffee is a family nurse practitioner with a practice address in Oceanside, California, and NPI 1063930915, issued on Aug 30, 2017. Check the license (California 95006786, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David Mark Chaffee
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95006786 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3927 Waring RD, Oceanside, CA 92056
- Phone
- (619) 703-7220
- Enumerated
- Aug 30, 2017
- Record last updated
- Sep 8, 2024
- Medicare enrollment
- Enrolled (PECOS I20171031003258); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 3927 Waring RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cyril Kellett, MDSpecialist1558383836
- Lawrence McCarthy, M.D.Specialist1538152509
- James McCook, D.D.S.General Practice Dentistry1902824006
Verify David Mark Chaffee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95006786Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,143 Medicare Part D claims for 497 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium78 claims
- Amlodipine Besylate62 claims
- Rosuvastatin Calcium62 claims
- Metoprolol Succinate51 claims
- Levothyroxine Sodium35 claims
- Azithromycin33 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.
Industry payments in 2024: $124.35
6 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pargol Samani MD IncOceanside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Mark Chaffee among 16,966 family nurse practitioner records in California
David Mark Chaffee 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 updated2024 · 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).
50 family nurse practitioner records list a practice address in Oceanside
They are 50 of the 3,438 NPPES records with a practice address in Oceanside, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Oceanside → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Rachel Anderson, RN, MSN, FNPOceanside, CA 920561235435587
- Sara Andolina, NPOceanside, CA 920561194142570
- Stacy Baldwin, FNP-BCOceanside, CA 920561114236395
- Ann Bouck, FNP, APRN-BCOceanside, CA 920561861543563
- Malinda Brick, RN, MSN, FNPOceanside, CA 920561184968174
- Beth Forbes, MSN, RNFA, FNP-BCOceanside, CA 920561477626315
- Raymond Gysler, F.N.P.Oceanside, CA 920561942552195
- Jennifer Ibasan, FNPOceanside, CA 920561619603719
Common questions
What is David Mark Chaffee's NPI number?
David Mark Chaffee's National Provider Identifier (NPI) is 1063930915, issued on Aug 30, 2017. An NPI identifies a provider in billing; it is not a license.
Where is David Mark Chaffee located?
The NPPES record lists a practice address at 3927 Waring RD, Oceanside, CA, 92056. Phone: (619) 703-7220. Providers update this record themselves, so call before visiting.
How can I verify David Mark Chaffee's license?
NPPES lists California license number 95006786, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does David Mark Chaffee prescribe under Medicare Part D?
In 2024, David Mark Chaffee had 1,143 Medicare Part D claims for 497 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.