NPPES file of Aug 9, 2026

Jonathan Joshua Frankman, DO

Hospitalist Physician · Kentfield, CA

Jonathan Joshua Frankman, DO is a hospitalist physician with a practice address in Kentfield, California, and NPI 1689163370, issued on May 8, 2018. Check the license (California 18409, 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
1689163370
Name
Jonathan Joshua Frankman
Credential
DO
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
18409 CA
20A18409 CA
Self-reported in NPPES; status is on the state search
Practice location
1125 Sir Francis Drake Blvd, Kentfield, CA 94904
Phone
(415) 301-1733
Enumerated
May 8, 2018
Record last updated
Dec 14, 2024
Medicare enrollment
Enrolled (PECOS I20220721000238); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Bradenton, 2018
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 1125 Sir Francis Drake Blvd

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

  1. Alex Barchuk, M.D.Physical Medicine & Rehabilitation Physician1851315774
  2. Justine Benavente, OTR/LOccupational Therapist1386312221
  3. Beth Cook, PH.D.Clinical Neuropsychologist1780727495
  4. John Cranshaw, M.D.Internal Medicine Physician1265514236
  5. Deborah Doherty, M.D.Physical Medicine & Rehabilitation Physician1689683112
  6. Lael Duncan, MDInfectious Disease Physician1447255740

Verify Jonathan Joshua Frankman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 18409    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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4.0 times the Medicare Part D claims of the average hospitalist physician in 2024

2,070 Medicare Part D claims for 310 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 167 claims were for opioids.

  1. Jonathan Frankman2,070
  2. Specialty average521

Most prescribed

  1. Gabapentin168 claims
  2. Duloxetine Hcl102 claims
  3. Mirtazapine97 claims
  4. Amlodipine Besylate89 claims
  5. Oxycodone Hcl59 claims
  6. Furosemide56 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. Galen Inpatient Physicians PCGreenbrae, CA

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

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

All 3,099 in California → Every provider in Kentfield →

Other hospitalist physician records in California

  1. Zina Abbas, M.D.Chula Vista, CA1962799189
  2. Abdul Abdali, M.D.French Camp, CA1104319771
  3. Michael Abdel-Malek, MDDublin, CA1952388852
  4. Amr Abdelaty, MDWoodland, CA1962996348
  5. Anwar Abdelhadi, M.D.Orange, CA1093784191
  6. Farid Abdelmalak, M.D.Santa Monica, CA1912392937
  7. Elijah AbdelmeseehLong Beach, CA1346827631
  8. Homayoun Abdollahzadeh, M.D.Rancho Mirage, CA1871802454
  9. Wajidah Abdul-KhabirDuarte, CA1215323522
  10. Rizwana Abdullah, MDRoseville, CA1194899401

Common questions

What is Jonathan Joshua Frankman, DO's NPI number?

Jonathan Joshua Frankman, DO's National Provider Identifier (NPI) is 1689163370, issued on May 8, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Joshua Frankman, DO located?

The NPPES record lists a practice address at 1125 Sir Francis Drake Blvd, Kentfield, CA, 94904. Phone: (415) 301-1733. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Joshua Frankman, DO's license?

NPPES lists California license number 18409, 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 Jonathan Joshua Frankman, DO prescribe under Medicare Part D?

In 2024, Jonathan Joshua Frankman, DO had 2,070 Medicare Part D claims for 310 beneficiaries; the average among hospitalist physician prescribers was 521. 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.