David Danzeisen, MD
NPI 1306924295 · Family Medicine Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Danzeisen, MD is a Family Medicine Physician provider in Fairfield, CA (NPI 1306924295).
Provider details
- NPI number
- 1306924295
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G85148 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 · 116 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 448 | 143 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 379 | 61 |
| Amlodipine Besylate | 253 | 84 |
| Levothyroxine Sodium | 226 | 61 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 204 | 80 |
| Lisinopril | 184 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-06
Frequently asked questions
- What is David Danzeisen's NPI number?
- David Danzeisen's National Provider Identifier (NPI) is 1306924295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Danzeisen's specialty?
- David Danzeisen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Danzeisen located?
- David Danzeisen's practice location on file with NPPES is 1550 Gateway Blvd, Fairfield, CA 94533-6901.
- What is David Danzeisen's phone number?
- The practice phone number listed in the NPPES registry for David Danzeisen is (707) 427-4000.
- Does David Danzeisen accept Medicare?
- David Danzeisen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Danzeisen's NPI active?
- Yes — David Danzeisen's NPI (1306924295) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.