NPPES file of Aug 9, 2026

Mariel Janowsky, M.D., M.P.H

Psychiatry Physician · San Diego, CA

Mariel Janowsky, M.D., M.P.H is a psychiatry physician with a practice address in San Diego, California, and NPI 1386039188, issued on Mar 30, 2015. Check the license (California A147176, 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
1386039188
Name
Mariel Janowsky
Credential
M.D., M.P.H
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A147176 CA
Self-reported in NPPES; status is on the state search
Practice location
2204 National Ave, San Diego, CA 92113
Phone
(619) 515-2355
Enumerated
Mar 30, 2015
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171006002056); may accept Medicare assignment
Medical or professional school
University Of Miami, Lm Miller School Of Medicine, 2015
Telehealth
Offers telehealth (CMS)
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 2204 National Ave

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

  1. Darinka Aragon, M.D.Psychiatry Physician1114347291
  2. Christopher Badalof, ASWClinical Social Worker1760033351
  3. Barrie Berkson, MSClinical Social Worker1922305465
  4. Deborah Birnbaum, D.O.Psychiatry Physician1639308265
  5. Jocelyn Bookman, MSWCounselor1528588597
  6. Myra Buby, LCSWSocial Worker1093747511

Verify Mariel Janowsky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A147176
    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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80% fewer Medicare Part D claims than the average psychiatry physician in 2024

196 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Mariel Janowsky196
  2. Specialty average1,000

Most prescribed

  1. Escitalopram Oxalate29 claims
  2. Clonazepam22 claims
  3. Buspirone Hcl21 claims
  4. Mirtazapine21 claims
  5. Zolpidem Tartrate15 claims
  6. Clozapine13 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

  1. Bold Health Medical Group A Professional CorporationEncinitas, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mariel Janowsky among 8,673 psychiatry physician records in California

Mariel Janowsky, M.D., M.P.H 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 2015, is newer than 74% of them.

  • NPI issued2015 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2015 · 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. Darinka Aragon, M.D.San Diego, CA 921131114347291
  2. Deborah Birnbaum, D.O.San Diego, CA 921131639308265
  3. Gabrielle Cerda, M.D.San Diego, CA 921131407887748
  4. Ezequiel Esparza, M.D.San Diego, CA 921131356375497
  5. Peter Kass, M.D., M.EDSan Diego, CA 921131417319765
  6. Nisha Patel, MDSan Diego, CA 921131356834873
  7. Matthew Suggs, DOSan Diego, CA 921131326543596
  8. Sharmila Carlton, MDSan Diego, CA 921141558442566

Common questions

What is Mariel Janowsky, M.D., M.P.H's NPI number?

Mariel Janowsky, M.D., M.P.H's National Provider Identifier (NPI) is 1386039188, issued on Mar 30, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Mariel Janowsky, M.D., M.P.H located?

The NPPES record lists a practice address at 2204 National Ave, San Diego, CA, 92113. Phone: (619) 515-2355. Providers update this record themselves, so call before visiting.

How can I verify Mariel Janowsky, M.D., M.P.H's license?

NPPES lists California license number A147176, 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 Mariel Janowsky, M.D., M.P.H prescribe under Medicare Part D?

In 2024, Mariel Janowsky, M.D., M.P.H had 196 Medicare Part D claims for 11 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.