Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mk Spine and Joint Rehab, P.C.

Q: What type of organization is Mk Spine and Joint Rehab, P.C.?

Mk Spine and Joint Rehab, P.C. is registered in NPPES as a Pain Clinic/Center (its primary provider taxonomy).

Pain Clinic/Center in Hauppauge, NY · enumerated 2019 · authorized official Matthew Kalter, Authorized Official.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1699239715

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Registry record

Entity type Organization (Type 2)

Legal business name Mk Spine and Joint Rehab, P.C.

Practice address 750 Veterans Hwy Ste 102, Hauppauge, NY, 11788

Phone (631) 335-9935

Enumeration date Jan 23, 2019

Last updated in NPPES May 12, 2026

Taxonomy & classification

261QP3300X Pain Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Matthew Kalter

Title Authorized Official

Phone (631) 335-9935

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Mk Spine and Joint Rehab, P.C.?

Mk Spine and Joint Rehab, P.C. is registered in NPPES as a Pain Clinic/Center (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-12.