Individual provider

Theresa Piotrowski, MD

Hospitalist Physician Obesity Medicine (Family Medicine) Physician Medicare enrolled

Theresa Piotrowski, MD is a Hospitalist Physician in Damariscotta, ME, registered under NPI 1598794505. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 35 MILES ST, Damariscotta, ME 04543. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

35 MILES ST, Damariscotta, ME 04543 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
MD24139 ME Hospitalist Physician primary
MD24136 ME Obesity Medicine (Family Medicine)…
75112 MA Obesity Medicine (Family Medicine)…

Licences are recorded in 2 states: ME, MA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Family Practice
PAC ID
0547227951

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Massachusetts I20091123000178 Practitioner - Family Practice
Maine I20210128000584 Practitioner - Hospice/palliative Care

Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. There are 2 separate enrolment records across 2 states (MA, ME). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: Massachusetts and Maine. The practice address on file is in Damariscotta, ME, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

MA Massachusetts
Licence
75112
Specialty
Obesity Medicine (Family Medicine)…
Verify with the MA board →
ME Maine practice address
Licence
MD24139
Specialty
Hospitalist Physician
Verify with the ME board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Hospitalist covers

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients. NUCC Health Care Provider Taxonomy, code 208M00000X
Allopathic & Osteopathic Physicians Hospitalist

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208M00000X Hospitalist Physician MD24139 ME primary
207QB0002X Obesity Medicine (Family Medicine) Physician Obesity Medicine MD24136 ME
207QB0002X Obesity Medicine (Family Medicine) Physician Obesity Medicine 75112 MA

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1598794505 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJul 2, 2006
Last updatedJan 10, 2022
StatusActive
Sole proprietorYes
CredentialMD
Practice address 35 MILES ST
Damariscotta, ME 04543
(207) 661-2018
Mailing address 18 ARBOR WAY
Groton, MA 01450
Other identifiers 110083754A · Medicaid (MA)
The last update on file is Jan 10, 2022. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1598794505 passes the NPI check digit test The final digit 5 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 5 9 8 7 9 4 5 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 9 8 5 9 8 5 0

Sum = 75 · next multiple of 10 = 80 · check digit = 5 · actual last digit = 5

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1598794505?
NPI 1598794505 is the National Provider Identifier assigned to Theresa Piotrowski, MD in Damariscotta, ME. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Hospitalist Physician cover?
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for…
How do I contact Theresa Piotrowski, MD?
The phone number on file with NPPES is (207) 661-2018, last updated Jan 10, 2022. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Theresa Piotrowski, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1598794505 a valid number?
Yes. 1598794505 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.