Jonathan Kaiser, MD
NPI 1467521484 · Internal Medicine Physician · Healdsburg, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Kaiser, MD is a Internal Medicine Physician provider in Healdsburg, CA (NPI 1467521484).
Provider details
- NPI number
- 1467521484
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A42113 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levothyroxine Sodium | 22 |
| Gabapentin | 16 |
| Hydrocortisone | 15 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 13 |
| Semaglutidebrand: Ozempic | 13 |
| Trazodone Hcl | 12 |
| Bempedoic Acid/Ezetimibebrand: Nexlizet | 12 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-06
- Last updated
- 2022-01-13
- Certified
- 2022-01-13
Frequently asked questions
- What is Jonathan Kaiser's NPI number?
- Jonathan Kaiser's National Provider Identifier (NPI) is 1467521484, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Kaiser's specialty?
- Jonathan Kaiser is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Kaiser located?
- Jonathan Kaiser's practice location on file with NPPES is 1083 Vine Street, Healdsburg, CA 95448-4830.
- What is Jonathan Kaiser's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Kaiser is (415) 246-9043.
- Does Jonathan Kaiser accept Medicare?
- Jonathan Kaiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Kaiser's NPI active?
- Yes — Jonathan Kaiser's NPI (1467521484) is active in the NPPES registry as of the last update on 2022-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.