Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Douglas Maxwell, MD

Nephrology Physician in Indianapolis, IN · enumerated 2005.

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

National Provider Identifier

1043205800

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Registry record

Entity type Individual (Type 1)

Name Douglas Maxwell

Credential MD

Sex Male

Practice address 1350 E County Line Rd, Suite L, Indianapolis, IN, 46227

Phone (317) 865-8530

Fax (317) 865-8539

Enumeration date Sep 16, 2005

Last updated in NPPES Jul 22, 2008

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 01022037A (IN) 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
100099210	Medicaid	IN	-

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 Douglas Maxwell?

Douglas Maxwell is registered in NPPES with the primary taxonomy of Nephrology 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 2008-07-22.