Patrick Dahl, MD
NPI 1033213392 · Dermatology Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Dahl, MD is a Dermatology Physician provider in Fullerton, CA (NPI 1033213392).
Provider details
- NPI number
- 1033213392
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G75823 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,538 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 3,740 | $8 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 888 | $84 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 527 | $105 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 438 | $75 |
| Biopsy of Related Skin Growth, First Growth11102 | 245 | $120 |
| Biopsy of Related Skin Growth, Each Additional Growth11103 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 82 | 39 |
| Ketoconazole | 47 | 12 |
| Doxycycline Hyclate | 37 | 26 |
| Fluocinonide | 24 | — |
| Desonide | 21 | — |
| Hydrocortisone | 20 | 14 |
| Hydroxyzine Hcl | 14 | — |
| Betamethasone Dipropionate | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-08
- Last updated
- 2012-08-17
Frequently asked questions
- What is Patrick Dahl's NPI number?
- Patrick Dahl's National Provider Identifier (NPI) is 1033213392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Dahl's specialty?
- Patrick Dahl is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Dahl located?
- Patrick Dahl's practice location on file with NPPES is 301 W Bastanchury Road, Fullerton, CA 92835.
- What is Patrick Dahl's phone number?
- The practice phone number listed in the NPPES registry for Patrick Dahl is (714) 525-3500.
- Does Patrick Dahl accept Medicare?
- Patrick Dahl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Dahl's NPI active?
- Yes — Patrick Dahl's NPI (1033213392) is active in the NPPES registry as of the last update on 2012-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.