NPPES file of Aug 9, 2026

John W. Allen, M.D.

Psychiatry Physician · El Cajon, CA

John W. Allen, M.D. is a psychiatry physician with a practice address in El Cajon, California, and NPI 1659382588, issued on Aug 9, 2006. Check the license (California C37706, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659382588
Name
John W. Allen
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
C37706 CA
Self-reported in NPPES; status is on the state search
Practice location
225 W Madison Ave Ste 2, El Cajon, CA 92020
Phone
(619) 631-4505
Enumerated
Aug 9, 2006
Record last updated
May 24, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(619) 713-6290
Medicaid ID
00C377060 CA
Medicare enrollment
Enrolled (PECOS I20040510001259); may accept Medicare assignment
Medical or professional school
Baylor College Of Medicine, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 225 W Madison Ave Ste 2

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mandy Brannen, DNP, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1891205159
  2. Deomel Soriano, PMHNP-BC, RN, MSNPsychiatric/Mental Health Nurse Practitioner1164641650

Verify John W. Allen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C37706
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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7.1 times the Medicare Part D claims of the average psychiatry physician in 2024

7,092 Medicare Part D claims for 148 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. John Allen7,092
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl553 claims
  2. Metoprolol Succinate468 claims
  3. Clozapine414 claims
  4. Divalproex Sodium Er357 claims
  5. Gabapentin303 claims
  6. Metformin Hcl273 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: $2,837.37

4 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Scientific Affairs, LLC. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Allen$2,837.37
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John W. Allen among 8,673 psychiatry physician records in California

John W. Allen, M.D. is one of 8,673 psychiatry physician 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1976 · median 2005 among the 3,295 with a school on file
  • Record last updated2018 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Cesar Benitez, M.DEl Cajon, CA 920201275738098
  2. Donna Landtwing, M.D.El Cajon, CA 920201356383616
  3. Robert Sanders, D.O.El Cajon, CA 920201144264300
  4. Iouri Simonenko, M.D.El Cajon, CA 920201891956157
  5. Joshua Tartaglione, D.O.El Cajon, CA 920201841567104
  6. Carmelita Barros, M.D.El Cajon, CA 920211922200310
  7. Vijay Chennamchetty, MD, MPHEl Cajon, CA 920211811194145
  8. Robert Gorney, M.D.El Cajon, CA 920211144486390

Common questions

What is John W. Allen, M.D.'s NPI number?

John W. Allen, M.D.'s National Provider Identifier (NPI) is 1659382588, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John W. Allen, M.D. located?

The NPPES record lists a practice address at 225 W Madison Ave Ste 2, El Cajon, CA, 92020. Phone: (619) 631-4505. Providers update this record themselves, so call before visiting.

How can I verify John W. Allen, M.D.'s license?

NPPES lists California license number C37706, 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 W. Allen, M.D. prescribe under Medicare Part D?

In 2024, John W. Allen, M.D. had 7,092 Medicare Part D claims for 148 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.