NPPES file of Aug 9, 2026

Sarah Louise Simmons, MD

Psychiatry Physician · La Jolla, CA

Sarah Louise Simmons, MD is a psychiatry physician with a practice address in La Jolla, California, and NPI 1548308331, issued on Feb 2, 2007. Check the license (California A91340, 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
1548308331
Name
Sarah Louise Simmons
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A91340 CA
Self-reported in NPPES; status is on the state search
Practice location
9500 Gilman Dr, La Jolla, CA 92093
Phone
(858) 534-4040
Enumerated
Feb 2, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080520000837); accepts Medicare assignment
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 9500 Gilman Dr

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

  1. Mickey Abraham, MD, MSStudent in an Organized Health Care Education/Training Program1609403732
  2. Angela Acfalle, NP CNSAdult Health Nurse Practitioner1013983857
  3. Kelley Adams, M.D.Psychiatry Physician1215039771
  4. Aaron AhdootStudent in an Organized Health Care Education/Training Program1558217901
  5. Grace AhnStudent in an Organized Health Care Education/Training Program1295317816
  6. Ginger Armas, PHDCounselor1396125035

Verify Sarah Louise Simmons in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A91340
    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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14% more Medicare Part D claims than the average psychiatry physician in 2024

1,144 Medicare Part D claims for 255 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims.

  1. Sarah Simmons1,144
  2. Specialty average1,000

Most prescribed

  1. Lorazepam113 claims
  2. Sertraline Hcl104 claims
  3. Alprazolam81 claims
  4. Trazodone Hcl75 claims
  5. Quetiapine Fumarate71 claims
  6. Fluoxetine Hcl67 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. Southern California Permanente Medical GroupEl Cajon, CA

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

Sarah Louise Simmons among 8,673 psychiatry physician records in California

Sarah Louise Simmons, MD 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 fileYes · 38% of these records are
  • Graduated2003 · median 2005 among the 3,295 with a school on file
  • 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).

90 psychiatry physician records list a practice address in La Jolla

They are 90 of the 3,648 NPPES records with a practice address in La Jolla, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Kelley Adams, M.D.La Jolla, CA 920931215039771
  2. Abesh Bhattacharjee, M.D., PH.D.La Jolla, CA 920931922393388
  3. Kristin Cadenhead, MDLa Jolla, CA 920931194744839
  4. Nancy Downs, M.D.La Jolla, CA 920931871735324
  5. John KeltnerLa Jolla, CA 920931740447416
  6. Steve Koh, M.DLa Jolla, CA 920931467650473
  7. Ellen Lee, M.D.La Jolla, CA 920931174822639
  8. Sandra Lim, DOLa Jolla, CA 920931083963094

Common questions

What is Sarah Louise Simmons, MD's NPI number?

Sarah Louise Simmons, MD's National Provider Identifier (NPI) is 1548308331, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Louise Simmons, MD located?

The NPPES record lists a practice address at 9500 Gilman Dr, La Jolla, CA, 92093. Phone: (858) 534-4040. Providers update this record themselves, so call before visiting.

How can I verify Sarah Louise Simmons, MD's license?

NPPES lists California license number A91340, 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 Sarah Louise Simmons, MD prescribe under Medicare Part D?

In 2024, Sarah Louise Simmons, MD had 1,144 Medicare Part D claims for 255 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.