Individual provider

Katherine Sawyer, LICSW, MLADC

Clinical Social Worker Addiction (Substance Use Disorder) Counselor Medicare enrolled

Katherine Sawyer, LICSW, MLADC is a provider specialising in Clinical Social Worker in Manchester, NH, registered under NPI 1558566489. 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 2 WALL ST SUITE 300, Manchester, NH 03101. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

2 WALL ST SUITE 300, Manchester, NH 03101 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
1497 NH Clinical Social Worker primary
0801 NH Addiction (Substance Use Disorder)…

This provider holds licence 1497 issued in NH. 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 - Clinical Social Worker
PAC ID
5395880272
Enrollment ID
I20100303000398

Medicare enrolment is recorded as approved under the provider type Practitioner - Clinical Social Worker. 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 Clinical covers

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
Behavioral Health & Social Service Providers Social Worker Clinical

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
1041C0700X Clinical Social Worker Clinical 1497 NH primary
101YA0400X Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) 0801 NH

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.

NPI1558566489 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 20, 2007
Last updatedJan 26, 2022
StatusActive
Sole proprietorNo
CredentialLICSW, MLADC
Practice address 2 WALL ST
SUITE 300
Manchester, NH 03101
(603) 668-4111
Fax (603) 628-7757
Mailing address 6 BUTTRICK RD STE 102
Londonderry, NH 03053
Other identifiers 7706638YONH01 · Other
81263824 · Medicaid (NH)
The last update on file is Jan 26, 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

1558566489 passes the NPI check digit test The final digit 9 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 5 8 5 6 6 4 8
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 1 8 1 6 3 4 7

Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9

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 1558566489?
NPI 1558566489 is the National Provider Identifier assigned to Katherine Sawyer, LICSW, MLADC in Manchester, NH. 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 Clinical cover?
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of…
How do I contact Katherine Sawyer, LICSW, MLADC?
The phone number on file with NPPES is (603) 668-4111, last updated Jan 26, 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 Katherine Sawyer, LICSW, MLADC 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 1558566489 a valid number?
Yes. 1558566489 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.