Jeffrey G. Dyo, M.D.
Internal Medicine Physician · Costa Mesa, CA
Jeffrey G. Dyo, M.D. is an internal medicine physician with a practice address in Costa Mesa, California, and NPI 1538663158, issued on Mar 20, 2018. Check the license (California A163731, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jeffrey G. Dyo
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A163731 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1640 Newport Blvd Ste 300, Costa Mesa, CA 92627
- Phone
- (949) 386-5101
- Enumerated
- Mar 20, 2018
- Record last updated
- Nov 14, 2022
- Medicare enrollment
- Enrolled (PECOS I20210712003899); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1640 Newport Blvd Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Boone, MDInternal Medicine Physician1487685095
- Jennifer Broad, M.D.Obstetrics & Gynecology Physician1801039821
- Kathy Tran, PA-CPhysician Assistant1205395373
- Vanessa Wu, M.D.Family Medicine Physician1699138511
Verify Jeffrey G. Dyo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A163731Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average internal medicine physician in 2024
846 Medicare Part D claims for 150 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium95 claims
- Amlodipine Besylate67 claims
- Atorvastatin Calcium66 claims
- Losartan Potassium43 claims
- Levothyroxine Sodium39 claims
- Gabapentin32 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
- Regents OF The University OF CaliforniaOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey G. Dyo among 17,696 internal medicine physician records in California
Jeffrey G. Dyo, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Costa Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shirin Afrasiabi, M.D. INCCosta Mesa, CA 926271548219140
- Adnan Akhtar, D.O.Costa Mesa, CA 926271215126396
- Matthew Boone, MDCosta Mesa, CA 926271487685095
- David Huang, MDCosta Mesa, CA 926271306919691
- Abdul Khan, M.D.Costa Mesa, CA 926271932120797
- Munazza Khan, M.D.Costa Mesa, CA 926271609897479
- Paul Kuhn, M.D.Costa Mesa, CA 926271427265073
- Shawna Le, MDCosta Mesa, CA 926271265061451
Common questions
What is Jeffrey G. Dyo, M.D.'s NPI number?
Jeffrey G. Dyo, M.D.'s National Provider Identifier (NPI) is 1538663158, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey G. Dyo, M.D. located?
The NPPES record lists a practice address at 1640 Newport Blvd Ste 300, Costa Mesa, CA, 92627. Phone: (949) 386-5101. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey G. Dyo, M.D.'s license?
NPPES lists California license number A163731, 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 Jeffrey G. Dyo, M.D. prescribe under Medicare Part D?
In 2024, Jeffrey G. Dyo, M.D. had 846 Medicare Part D claims for 150 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.