DR. ERIN MARIE THEISEN MD, PHD
NPI 1548720287
Dermatology in Boston, MA

Active since March 20, 2019PECOS EnrolledAccepts Medicare Assignment
221 LONGWOOD AVE, BOSTON, MA 02115(617) 732-4918 Get Directions Write a Review

NPPES record last updated: August 24, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 24, 2023, Jun 23, 2020, Mar 20, 2019 (3 updates tracked since 2019).

About Dr. Erin Marie Theisen Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ERIN MARIE THEISEN MD, PHD (NPI 1548720287) is an individual dermatology provider in Boston, Massachusetts, licensed in Massachusetts (1013754) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of University Of Wisconsin School Of Medicine (2019).

NPPES Registry Identity

NPI1548720287
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameDR. ERIN MARIE THEISENCredential: MD, PHD
Location Address221 LONGWOOD AVEBoston, MA 02115-5817
Mailing Address221 Longwood AveBoston, MA 02115-5817 · (617) 732-4918
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2019
Enumeration DateMarch 20, 2019
Last NPPES UpdateAugust 24, 20233 updates tracked since enumeration
NPPES CertifiedAugust 24, 2023
NPI 1548720287 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in MA · 1013754
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
221 LONGWOOD AVE, Boston, MA 02115

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Erin Marie Theisen Md, Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850625500
PECOS Enrollment IDI20230421001942
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
65 services41 patients
Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
38 services12 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
20 services17 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
14 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
221 LONGWOOD AVE
BOSTON, MA 02115
Obstetrics & Gynecology (Gynecology)
221 LONGWOOD AVE, BRIGHAM AND WOMENS HOSP DEPT OF OBSTETRICS AND GYNECOLO
BOSTON, MA 02115
Psychiatry & Neurology (Psychiatry)
221 LONGWOOD AVE
BOSTON, MA 02115
Psychiatry & Neurology (Psychiatry)
221 LONGWOOD AVE, 4TH FL/PSYCHIATRY
BOSTON, MA 02115
Specialist
221 LONGWOOD AVE
BOSTON, MA 02115
Dermatology
221 LONGWOOD AVE
BOSTON, MA 02115
General Acute Care Hospital
221 LONGWOOD AVE, BWH-ENDOCRINOLOGY
BOSTON, MA 02115
Dermatology
221 LONGWOOD AVE
BOSTON, MA 02115

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Erin Theisen's NPI number?

The NPI number for Erin Theisen is 1548720287. It was assigned to this individual provider in the NPPES registry on March 20, 2019.

Where is Erin Theisen located?

Erin Theisen practices at 221 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 732-4918.

What is Erin Theisen's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Erin Theisen enrolled in Medicare?

Yes. Erin Theisen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Erin Theisen accept?

Health plans from Anthem Blue Cross and Blue Shield list Erin Theisen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Erin Theisen affiliated with any hospitals?

According to CMS data, Erin Theisen is affiliated with Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Erin Theisen was last updated on August 24, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.