Douglas Davidson, PA
NPI 1174294938 · Physician Assistant · San Rafael, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Davidson, PA is a Physician Assistant provider in San Rafael, CA (NPI 1174294938).
Provider details
- NPI number
- 1174294938
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
163 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $82 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 31 | $143 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 23 | $98 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 15 | $41 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $115 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 25 | 25 |
| Azithromycin | 18 | 18 |
| Ibuprofen | 17 | 17 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 14 | 14 |
| Naproxen | 12 | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 | — |
| Cyclobenzaprine Hcl | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-09-22
- Last updated
- 2023-03-07
- Certified
- 2023-03-07
Frequently asked questions
- What is Douglas Davidson's NPI number?
- Douglas Davidson's National Provider Identifier (NPI) is 1174294938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Davidson's specialty?
- Douglas Davidson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Douglas Davidson located?
- Douglas Davidson's practice location on file with NPPES is 50 Acacia Ave, San Rafael, CA 94901-2230.
- What is Douglas Davidson's phone number?
- The practice phone number listed in the NPPES registry for Douglas Davidson is (951) 816-8970.
- Does Douglas Davidson accept Medicare?
- Douglas Davidson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Davidson's NPI active?
- Yes — Douglas Davidson's NPI (1174294938) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.