Stephen Anthony Dunphy, MD
Emergency Medicine Physician · Escondido, CA
Stephen Anthony Dunphy, MD is an emergency medicine physician with a practice address in Escondido, California, and NPI 1619025517, issued on Jan 8, 2007. Check the license (California A90293, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Anthony Dunphy
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A90293 CA
Self-reported in NPPES; status is on the state search - Practice location
- 555 E Valley Pkwy, Escondido, CA 92025
- Phone
- (760) 739-3206
- Enumerated
- Jan 8, 2007
- Record last updated
- May 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (760) 743-0639
- Medicaid ID
- 00A902930 CA
- Medicare enrollment
- Enrolled (PECOS I20060320000473); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 555 E Valley Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anne Allen, C.N.M.Advanced Practice Midwife1487660627
- John Anshus, M.D.Emergency Medicine Physician1225044100
- Richard Austin, MDAnesthesiology Physician1275519589
- Susan Bass, C.N.M.Advanced Practice Midwife1881605632
- Bob Blake, M.D.Emergency Medicine Physician1437165354
- Emily Bowen, PNP, RNPediatric Nurse Practitioner1790947315
Verify Stephen Anthony Dunphy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90293Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
97 Medicare Part D claims for 62 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Tramadol Hcl12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $227.64
3 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 12,335 providers of this specialty with any payment received $953.79 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
- Palomar Emergency Physicians, IncEscondido, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Anthony Dunphy among 7,751 emergency medicine physician records in California
Stephen Anthony Dunphy, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2003 · median 2011 among the 4,560 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Escondido → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- John Anshus, M.D.Escondido, CA 920251225044100
- Bob Blake, M.D.Escondido, CA 920251437165354
- Russell Engevik, M.D.Escondido, CA 920251275549115
- John Fredericks, M.D.Escondido, CA 920251124034749
- Michele Grad, M.D.Escondido, CA 920251295740884
- Kevin Hutton, M.D.Escondido, CA 920251568477107
- Emi Latham, M.D.Escondido, CA 920251871594903
- Steven Mannis, M.DEscondido, CA 920251720037187
Common questions
What is Stephen Anthony Dunphy, MD's NPI number?
Stephen Anthony Dunphy, MD's National Provider Identifier (NPI) is 1619025517, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Anthony Dunphy, MD located?
The NPPES record lists a practice address at 555 E Valley Pkwy, Escondido, CA, 92025. Phone: (760) 739-3206. Providers update this record themselves, so call before visiting.
How can I verify Stephen Anthony Dunphy, MD's license?
NPPES lists California license number A90293, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Anthony Dunphy, MD prescribe under Medicare Part D?
In 2024, Stephen Anthony Dunphy, MD had 97 Medicare Part D claims for 62 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Stephen Anthony Dunphy, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.