Mary Dahl, MD
NPI 1255414991 · Dermatology Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Dahl, MD is a Dermatology Physician provider in Monterey, CA (NPI 1255414991).
Provider details
- NPI number
- 1255414991
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G86138 (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
10,402 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 | 3,834 | $8 |
| Destruction of Skin Growth, 1-14 Growths17110 | 1,637 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,590 | $101 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 1,494 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 834 | $142 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Betamethasone Dipropionate | 102 | 71 |
| Doxycycline Hyclate | 85 | 33 |
| Clobetasol Propionate | 74 | 43 |
| Valacyclovir Hclbrand: Valacyclovir | 66 | 39 |
| Triamcinolone Acetonide | 61 | 41 |
| Minoxidil | 59 | 20 |
| Fluorouracil | 47 | 44 |
| Ciclopirox Olaminebrand: Ciclopirox |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-24
- Last updated
- 2016-11-10
Frequently asked questions
- What is Mary Dahl's NPI number?
- Mary Dahl's National Provider Identifier (NPI) is 1255414991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Dahl's specialty?
- Mary Dahl is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Dahl located?
- Mary Dahl's practice location on file with NPPES is 977 Pacific St, Monterey, CA 93940.
- What is Mary Dahl's phone number?
- The practice phone number listed in the NPPES registry for Mary Dahl is (831) 644-9740.
- Does Mary Dahl accept Medicare?
- Mary Dahl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Dahl's NPI active?
- Yes — Mary Dahl's NPI (1255414991) is active in the NPPES registry as of the last update on 2016-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.