NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Matthew Aaron Kaplan, D.O.

Pain Medicine Physician in Round Rock, TX · enumerated 2006 · practices at Texas Diabetes and Endocrinology PA.

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

National Provider Identifier

1558423038

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Registry record

Entity type Individual (Type 1)
Name Dr. Matthew Aaron Kaplan
Credential D.O.
Sex Male
Practice address Round Rock, TX, 78681
Fax (512) 255-7547
Enumeration date Dec 14, 2006
Last updated in NPPES Feb 18, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License OT011399 (PA) Secondary
207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 238092 (MA) Secondary
208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License P6985 (TX) Primary
208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License P6985 (TX) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
110083211A Medicaid MA -

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 specialty is Matthew Kaplan?
Matthew Kaplan is registered in NPPES with the primary taxonomy of Pain Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-18.