Doctor profile · Federal record

Dr. Erin Theisen, MD, PHD

Dermatology Physician (CMS: Dermatology) · Boston, MA

  • NPI 1548720287
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
221 Longwood Ave
Boston, MA 021155817
(617) 732-4918

Credentials & registration

NPPES · NUCC
NPI registered
March 2019 — 7 yrs on file
Profile last updated
August 24, 2023
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207N00000X — NUCC code
State license (1)
Massachusetts #1013754

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548720287. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
37
Distinct HCPCS
2
Medicare allowed
$3,173
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 22 20 $104
17000 Destruction of precancer skin growth, 1 growth 15 13 $59

In context: peer comparison

Among 69 peers in Boston Dermatology Physician, average services per provider: 115. This provider delivers 0.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
38
Patients
11
Total drug cost
$867
Drug Type Claims Patients Total cost
Ketoconazole Generic 16 11 $264
Clobetasol Propionate Generic 11 0 $404
Triamcinolone Acetonide Generic 11 0 $200

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Erin Theisen's medical specialty?
Dr. Erin Theisen practices Dermatology Physician in Boston, MA.
Where does Dr. Erin Theisen practice?
Dr. Erin Theisen practices at 221 Longwood Ave, Boston, MA 021155817. Office phone: 6177324918.
What is Dr. Erin Theisen's NPI?
Dr. Erin Theisen's National Provider Identifier (NPI) is 1548720287, issued by NPPES.
Does Dr. Erin Theisen accept Medicare assignment?
Yes. Dr. Erin Theisen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Erin Theisen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Destruction of precancer skin growth, 1 growth (HCPCS 17000). Source: CMS Medicare Physician & Other Practitioners file.