Jane Mertens, M.D.
Psychiatry Physician · Del Mar, CA
Jane Mertens, M.D. is a psychiatry physician with a practice address in Del Mar, California, and NPI 1528125945, issued on Jan 3, 2007. Check the license (California A42737, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jane Mertens
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A42737 CA
Self-reported in NPPES; status is on the state search - Practice location
- 240 9TH St, Del Mar, CA 92014
- Phone
- (858) 793-8336
- Enumerated
- Jan 3, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (858) 551-8288
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 240 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Diana Weiss, PH.D.Clinical Psychologist1861546608
Verify Jane Mertens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42737Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average psychiatry physician in 2024
483 Medicare Part D claims for 35 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Bupropion Xl62 claims
- Quetiapine Fumarate33 claims
- Lorazepam27 claims
- Alprazolam26 claims
- Clonazepam26 claims
- Dextroamphetamine-Amphet Er23 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: $343.59
5 payments; by number, the most common kind was food and beverage; the largest payer was Axsome Therapeutics, Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Jane Mertens among 8,673 psychiatry physician records in California
Jane Mertens, 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 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2007 · 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).
19 psychiatry physician records list a practice address in Del Mar
They are 19 of the 344 NPPES records with a practice address in Del Mar, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Del Mar → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Edward Allen, M.D.Del Mar, CA 920141881781334
- David Bergman, M.D.Del Mar, CA 920141285737130
- Rustin Berlow, MDDel Mar, CA 920141164549077
- Scott Cologne, M.D.Del Mar, CA 920141215055421
- Kim Gutner, M.D.Del Mar, CA 920141740360924
- Jeffrey Hollingsworth, D.O.Del Mar, CA 920141376748673
- Elizabeth Hudler, MDDel Mar, CA 920141134287352
- Carolyn Josepho, MDDel Mar, CA 920141932274891
Common questions
What is Jane Mertens, M.D.'s NPI number?
Jane Mertens, M.D.'s National Provider Identifier (NPI) is 1528125945, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jane Mertens, M.D. located?
The NPPES record lists a practice address at 240 9TH St, Del Mar, CA, 92014. Phone: (858) 793-8336. Providers update this record themselves, so call before visiting.
How can I verify Jane Mertens, M.D.'s license?
NPPES lists California license number A42737, 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 Jane Mertens, M.D. prescribe under Medicare Part D?
In 2024, Jane Mertens, M.D. had 483 Medicare Part D claims for 35 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.