Registry data as of Aug 27, 2026

Jayne Joo, M.D.

Dermatology Physician · Sacramento, CA

Jayne Joo, M.D. is a dermatology physician with a practice address in Sacramento, California, and NPI 1942468962, issued on May 27, 2008. Check the license (California A109963, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1942468962
Name
Jayne Joo
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
A109963 CA
Self-reported in NPPES; status is on the state search
Practice location
3301 C St Ste 1400, Sacramento, CA 95816
Phone
(916) 734-6111
Enumerated
May 27, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3301 C St Ste 1400

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

  1. Boya Abudu, MD, MPHDermatology Physician1336608637
  2. Alain Brassard, MD FRCPC FABDDermatology Physician1942711486
  3. Ilana Breen, MDStudent in an Organized Health Care Education/Training Program1770169120
  4. Lawrence Chan, M.D., M.H.A.Dermatology Physician1912916263
  5. Austin HwangStudent in an Organized Health Care Education/Training Program1215607015
  6. Ted Jacoby, MDStudent in an Organized Health Care Education/Training Program1306520374

Verify Jayne Joo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A109963    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

81% fewer Medicare Part D claims than the average dermatology physician in 2024

153 Medicare Part D claims for 106 beneficiaries, against an average of 799 among the 11,754 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Jayne Joo153
  2. Specialty average799

Most prescribed

  1. Fluorouracil24 claims
  2. Alprazolam21 claims
  3. Cefadroxil21 claims
  4. Doxycycline Hyclate20 claims
  5. Tramadol Hcl11 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.

2 hospital and facility affiliations

  1. Regents OF The Univ OF CASacramento, CA
  2. Regents OF The University OF CaliforniaFolsom, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Dermatology Physician providers in California

There are 2,004 dermatology physician records in California.

All 2,004 in California → Every provider in Sacramento →

Other dermatology physician records in California

  1. Sumaira Aasi, MDStanford, CA1780675181
  2. Christopher Abbott, M.D.San Diego, CA1578866885
  3. Eman Abdallah, D.O.Los Angeles, CA1528321957
  4. Farah Abdulla, MDDuarte, CA1093934390
  5. Sayyida Abdus-Salaam, M.D.Daly City, CA1114241296
  6. Robert Abergel, M.D.Santa Monica, CA1841565843
  7. Glynis Ablon, M.D.Manhattan Beach, CA1144292889
  8. Arthur Abrams, MDMountain View, CA1518093178
  9. Aseel Abu-NasserRedding, CA1609641711
  10. Faud Abuabara, M.D.Mountain View, CA1164472890

Common questions

What is Jayne Joo, M.D.'s NPI number?

Jayne Joo, M.D.'s National Provider Identifier (NPI) is 1942468962, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jayne Joo, M.D. located?

The NPPES record lists a practice address at 3301 C St Ste 1400, Sacramento, CA, 95816. Phone: (916) 734-6111. Providers update this record themselves, so call before visiting.

How can I verify Jayne Joo, M.D.'s license?

NPPES lists California license number A109963, 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 Jayne Joo, M.D. prescribe under Medicare Part D?

In 2024, Jayne Joo, M.D. had 153 Medicare Part D claims for 106 beneficiaries; the average among dermatology physician prescribers was 799. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.