NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sarah A Merrill, MD, MS

Student in an Organized Health Care Education/Training Program in Indianapolis, IN · enumerated 2022.

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

National Provider Identifier

1215670641

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Registry record

Entity type Individual (Type 1)
Name Dr. Sarah A Merrill
Credential MD, MS
Sex Female
Practice address 355 W 16th St # Gh5100, Indianapolis, IN, 46202
Enumeration date Apr 14, 2022
Last updated in NPPES Apr 14, 2022

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 207T000000X (IN) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 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.
What specialty is Sarah Merrill?
Sarah Merrill is registered in NPPES with the primary taxonomy of Student in an Organized Health Care Education/Training Program. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Kyle Ortiz Rodriguez Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1114481983 Matthew Tobin Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1306475116 Piiamaria Virtanen Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1902425572 Weston Troja Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1043885551 Ryan Cloyd Neurological Surgery Physician · Indianapolis, IN NPI 1417699398 Chiara Flores Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1679216782 Alexei Christodoulides Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1245935089 Samantha Palma Student in an Organized Health Care Education/Training Program · Indianapolis, IN NPI 1336835511

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-14.