NPPES file of Aug 9, 2026

Loni D. Jay, MD

Addiction Medicine (Family Medicine) Physician · Jackson, CA

Loni D. Jay, MD is an addiction medicine (family medicine) physician with a practice address in Jackson, California, and NPI 1487097929, issued on Apr 15, 2013. Check the license (California A132204, 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
1487097929
Name
Loni D. Jay
Credential
MD
Primary taxonomy
Addiction Medicine (Family Medicine) Physician 207QA0401X
License number
A132204 CA
Self-reported in NPPES; status is on the state search
Practice location
815 Court St Ste 7, Jackson, CA 95642
Phone
(209) 257-5900
Enumerated
Apr 15, 2013
Record last updated
Jan 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161007001437); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 2013
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.
Download card Updates feed

8 nearest addiction medicine (family medicine) physician records → All 124 in California → Look up another NPI →

Also registered at 815 Court St Ste 7

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

  1. Rebecca Hall, NPAdult Health Nurse Practitioner1922556893
  2. Marianne LapointeMedical Physician Assistant1225167356
  3. Jessica McCarthy, FNPFamily Nurse Practitioner1326539115
  4. Gayane Saakyan, MDFamily Medicine Physician1023719945
  5. Jennifer Shoemaker, MDFamily Medicine Physician1952613028
  6. Felicia TangFamily Medicine Physician1144711797

Verify Loni D. Jay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A132204    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

45% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024

364 Medicare Part D claims for 246 beneficiaries, against an average of 664 among the 581 providers of this specialty who prescribed in Part D.

  1. Loni Jay364
  2. Specialty average664

Most prescribed

  1. Cephalexin44 claims
  2. Prednisone41 claims
  3. Amoxicillin-Clavulanate Potass37 claims
  4. Azithromycin31 claims
  5. Doxycycline Hyclate16 claims
  6. Sulfamethoxazole-Trimethoprim15 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.

3 hospitals and group practices

  1. Marshall Medical CenterPlacerville, CA · Acute Care Hospitals4 of 5 stars
  2. Sutter Bay Medical FoundationPalo Alto, CA
  3. Sutter Valley Medical FoundationWoodland, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Loni D. Jay among 124 addiction medicine (family medicine) physician records in California

Loni D. Jay, MD is one of 124 addiction medicine (family medicine) physician records with a practice address in California. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 51% of them.

  • NPI issued2013 · 51% of these records are older, 47% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2013 · median 2015 among the 64 with a school on file
  • Record last updated2021 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Family Medicine) Physician providers in California

There are 124 addiction medicine (family medicine) physician records in California.

All 124 in California → Every provider in Jackson → Addiction Medicine (Family Medicine) Physician nationwide →

The 8 addiction medicine (family medicine) physician records with the nearest ZIP codes

  1. Jason Speaks, PHD, FNP-C, RNGalt, CA 956321902140007
  2. Paul Nerz, MDPlacerville, CA 956671467549030
  3. Ernest Vasti, M.D.Rancho Cordova, CA 956701205869849
  4. Eva Smith, M.D., M.P.H.Hoopa, CA 955461982773099
  5. Cara Eberhardt, MDUkiah, CA 954821174151450
  6. Rachel Caspar, M.DSacramento, CA 958111053774273
  7. Robert GardnerLucerne, CA 954581023183829
  8. Stephen Bradley, MDLakeport, CA 954531699746446

Common questions

What is Loni D. Jay, MD's NPI number?

Loni D. Jay, MD's National Provider Identifier (NPI) is 1487097929, issued on Apr 15, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Loni D. Jay, MD located?

The NPPES record lists a practice address at 815 Court St Ste 7, Jackson, CA, 95642. Phone: (209) 257-5900. Providers update this record themselves, so call before visiting.

How can I verify Loni D. Jay, MD's license?

NPPES lists California license number A132204, 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 Loni D. Jay, MD prescribe under Medicare Part D?

In 2024, Loni D. Jay, MD had 364 Medicare Part D claims for 246 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 664. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.