Holly Mason, M.D.,PH.D.
NPI 1497950182 · Dermatology Physician · Salem, MA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Mason, M.D.,PH.D. is a Dermatology Physician provider in Salem, MA (NPI 1497950182).
Provider details
- NPI number
- 1497950182
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MT189227 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,817 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,301 | $7 |
| Biopsy of Related Skin Growth, First Growth11102 | 628 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 603 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 595 | $92 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 485 | $47 |
| Biopsy of Related Skin Growth, Each Additional Growth |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 98 | 58 |
| Fluorouracil | 89 | 80 |
| Triamcinolone Acetonide | 85 | 62 |
| Ketoconazole | 75 | 41 |
| Metronidazole | 42 | 22 |
| Betamethasone/Propylene Glycbrand: Betamethasone Diprop Augmented | 34 | 19 |
| Desonide | 31 | 25 |
| Dupilumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,829 across 100 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-20
- Last updated
- 2017-12-06
Frequently asked questions
- What is Holly Mason's NPI number?
- Holly Mason's National Provider Identifier (NPI) is 1497950182, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Mason's specialty?
- Holly Mason is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Holly Mason located?
- Holly Mason's practice location on file with NPPES is 5 Paradise Rd, Salem, MA 01970-4229.
- What is Holly Mason's phone number?
- The practice phone number listed in the NPPES registry for Holly Mason is (978) 691-5690.
- Does Holly Mason accept Medicare?
- Holly Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Mason's NPI active?
- Yes — Holly Mason's NPI (1497950182) is active in the NPPES registry as of the last update on 2017-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.