Gerilyn Olsen, MD
NPI 1538746847 · Dermatology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerilyn Olsen, MD is a Dermatology Physician provider in Boston, MA (NPI 1538746847).
Provider details
- NPI number
- 1538746847
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 1021464 (MA)
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 999 N 92nd St Ste 730Milwaukee, WI 53226-4875Phone: (414) 266-6800
Registry dates
- Enumerated
- 2021-03-24
- Last updated
- 2025-06-28
- Certified
- 2025-06-28
Frequently asked questions
- What is Gerilyn Olsen's NPI number?
- Gerilyn Olsen's National Provider Identifier (NPI) is 1538746847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerilyn Olsen's specialty?
- Gerilyn Olsen is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Gerilyn Olsen located?
- Gerilyn Olsen's practice location on file with NPPES is 330 Brookline Ave # 522, Boston, MA 02215-5400.
- What is Gerilyn Olsen's phone number?
- The practice phone number listed in the NPPES registry for Gerilyn Olsen is (617) 667-4995.
- Does Gerilyn Olsen accept Medicare?
- Gerilyn Olsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerilyn Olsen's NPI active?
- Yes — Gerilyn Olsen's NPI (1538746847) is active in the NPPES registry as of the last update on 2025-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.