Individual provider

Theresa Mills, PMHNP

Psychiatric/Mental Health Nurse Practitioner Addiction Medicine (Psychiatry & Neurology) Physician Medicare enrolled

Theresa Mills, PMHNP is a Psychiatric/Mental Health Nurse Practitioner in Fremont, OH, registered under NPI 1235700881. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 1737 MORRISON RD, Fremont, OH 43420. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1737 MORRISON RD, Fremont, OH 43420 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
LE-00037106 OH Psychiatric/Mental Health Nurse… primary
MM6591437 OH Addiction Medicine (Psychiatry &…

This provider holds licence LE-00037106 issued in OH. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
3779974415

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Ohio I20220427000553 Practitioner - Nurse Practitioner
Arizona I20230628004327 Practitioner - Nurse Practitioner

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. There are 2 separate enrolment records across 2 states (OH, AZ). 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.

What Psychiatric/Mental Health covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Psychiatric/Mental Health

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LP0808X Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health LE-00037106 OH primary
2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Addiction Medicine MM6591437 OH

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.

NPI1235700881 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJul 6, 2021
Last updatedFeb 3, 2025
StatusActive
Sole proprietorNo
CredentialPMHNP
Practice address 1737 MORRISON RD
Fremont, OH 43420
(419) 680-5152
Mailing address 140 SAINT PAUL DR
Fremont, OH 43420
Other identifiers 0460985 · Medicaid (OH)
This record was updated on Feb 3, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1235700881 passes the NPI check digit test The final digit 1 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 2 3 5 7 0 0 8 8
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 2 6 5 5 0 0 8 7

Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1

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 1235700881?
NPI 1235700881 is the National Provider Identifier assigned to Theresa Mills, PMHNP in Fremont, OH. 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 Psychiatric/Mental Health cover?
Definition to come...
How do I contact Theresa Mills, PMHNP?
The phone number on file with NPPES is (419) 680-5152, last updated Feb 3, 2025. 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 Mills, PMHNP 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 1235700881 a valid number?
Yes. 1235700881 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.