Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eric Carkner, MD

Orthopaedic Surgery Physician in Chestnut Hill, MA · enumerated 2006.

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

National Provider Identifier

1568441095

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Eric Carkner

Credential MD

Sex Male

Practice address 830 Boylston St, Suite 211, Chestnut Hill, MA, 02467

Phone (617) 734-2450

Fax (617) 734-7804

Enumeration date Jan 12, 2006

Last updated in NPPES Sep 22, 2020

Taxonomy & licenses

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 219099 (MA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 219099 (MA) 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
2106388	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

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 Eric Carkner?

Eric Carkner is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Heather Williams Physician Assistant · Chestnut Hill, MA NPI 1386645687 Sports Medicine Associates P.C. Orthopaedic Surgery Physician · Brookline, MA NPI 1063487577 St George Aufranc Orthopaedic Surgery Physician · Brookline, MA NPI 1578539755 William Shea Orthopaedic Surgery Physician · Chestnut Hill, MA NPI 1265408462 Henry Toczylowski Orthopaedic Surgery Physician · Chestnut Hill, MA NPI 1285690487 David Mattingly Adult Reconstructive Orthopaedic Surgery Physician · Chestnut Hill, MA NPI 1558328443 Daniel Ward Orthopaedic Surgery Physician · Chestnut Hill, MA NPI 1922065820 Benjamin Bierbaum Adult Reconstructive Orthopaedic Surgery Physician · Chestnut Hill, MA NPI 1962469353

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-22.