Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Spencer Robert Berthelsen, MD

Internal Medicine Physician in Sugar Land, TX · enumerated 2006 · practices at Ks Sc LLC.

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

National Provider Identifier

1295763290

Verified

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Registry record

Entity type Individual (Type 1)

Name Spencer Robert Berthelsen

Credential MD

Sex Male

Practice address 11555 University Blvd, Sugar Land, TX, 77478

Phone (713) 442-9100

Enumeration date Jun 29, 2006

Last updated in NPPES Dec 9, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License E8327 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
808129	Other	TX	BCBS
116601902	Medicaid	TX	-
116601901	Medicaid	TX	-

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 Spencer Berthelsen?

Spencer Berthelsen is registered in NPPES with the primary taxonomy of Internal 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 2016-12-09.