Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Derek Lewis Tennenhouse, M.D.

Obstetrics & Gynecology Physician in Carmel, IN · enumerated 2009 · practices at Brookside Medical Home Visits LLC.

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

National Provider Identifier

1689813073

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Registry record

Entity type Individual (Type 1)

Name Dr. Derek Lewis Tennenhouse

Credential M.D.

Sex Male

Practice address 1200 W Carmel Dr, #103, Carmel, IN, 46032

Phone (317) 796-3897

Enumeration date Feb 10, 2009

Last updated in NPPES Feb 25, 2017

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 01056104C (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
200374530	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

Is NPI 1689813073 active?

Yes, as of the latest NPPES snapshot, NPI 1689813073 is active (record last updated 2017-02-25).

How do I verify Derek Tennenhouse's NPI record?

Cross-check NPI 1689813073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Brookside Medical Home Visits LLC Durable Medical Equipment & Medical Supplies · Carmel, IN NPI 1770340051

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-25.