John H. Detwiler, M.D.
Cardiovascular Disease Physician · Escondido, CA
John H. Detwiler, M.D. is a cardiovascular disease physician with a practice address in Escondido, California, and NPI 1154324036, issued on May 24, 2005. Check the license (California G23336, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John H. Detwiler
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G23336 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1955 W Citracado Pkwy, Escondido, CA 92029
- Phone
- (760) 743-0546
- Enumerated
- May 24, 2005
- Record last updated
- Oct 8, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (760) 743-8837
- Medicaid ID
- 1154324036 CA
- Entity
- Type 1 · individual
Also registered at 1955 W Citracado Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John H. Detwiler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G23336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
16 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Spironolactone13 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.
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
Other cardiovascular disease physician records in California
- Abdul Abbasi, MDLong Beach, CA1710071717
- Siddique Abbasi, MDThousand Oaks, CA1528076718
- Lillian Abdelmalek, MDSacramento, CA1881343796
- Robin Abdelmalik, M.D. FACCTemecula, CA1275656662
- Roberto Abdelnur, MDEl Centro, CA1982648606
- Sohail Abdi-Moradi, M.D.Moorpark, CA1376862938
- Nadia Abelhad, M.D.Chula Vista, CA1619400801
- Georges Abou Rjaili, MDRiverside, CA1073896544
- Jamil Aboulhosn, MDLos Angeles, CA1356382717
- Maria Abraham, M.D.San Francisco, CA1669436960
Common questions
What is John H. Detwiler, M.D.'s NPI number?
John H. Detwiler, M.D.'s National Provider Identifier (NPI) is 1154324036, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John H. Detwiler, M.D. located?
The NPPES record lists a practice address at 1955 W Citracado Pkwy, Escondido, CA, 92029. Phone: (760) 743-0546. Providers update this record themselves, so call before visiting.
How can I verify John H. Detwiler, M.D.'s license?
NPPES lists California license number G23336, 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 John H. Detwiler, M.D. prescribe under Medicare Part D?
In 2024, John H. Detwiler, M.D. had 16 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. 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.