Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marianne Sarah Koenig, M.D.

Pediatric Adolescent Medicine Physician in Sandwich, MA · enumerated 2006.

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

National Provider Identifier

1619930559

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Registry record

Entity type Individual (Type 1)

Name Dr. Marianne Sarah Koenig

Credential M.D.

Sex Female

Practice address 449 Route 130, Sandwich, MA, 02563

Phone (508) 888-8430

Fax (508) 888-6673

Enumeration date Apr 11, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians · License 50001 (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
28345	Other	MA	CHILDRENS MEDICAL SECURIT
S011190	Other	MA	TRICARE
20140	Other	MA	HARVARD PILGRIM HEALTH CA
KOJO4544	Other	MA	BLUE CROSS BLUE SHIELD
1200958	Other	MA	UNITED HEALTHCARE
3000532	Medicaid	MA	-
4849274	Other	MA	CIGNA

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.

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Frequently asked questions

Is NPI 1619930559 active?

Yes, as of the latest NPPES snapshot, NPI 1619930559 is active (record last updated 2007-07-08).

How do I verify Marianne Koenig's NPI record?

Cross-check NPI 1619930559 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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Theodore Jellinek Psychiatry Physician · Sandwich, MA NPI 1730144635 Michael K. Ackland, MD Sports Medicine (Orthopaedic Surgery) Physician · Sandwich, MA NPI 1841256658 David Callahan Psychologist · Sandwich, MA NPI 1205865797 Marie Jellinek Registered Nurse · Sandwich, MA NPI 1710087838 Aimee Doctoroff Registered Nurse · Sandwich, MA NPI 1578642575 Frances Nenna Pediatrics Physician · Sandwich, MA NPI 1770651796 Ackland Sports Medicine, Inc. Sports Medicine (Orthopaedic Surgery) Physician · Sandwich, MA NPI 1902949704 Sandwich Pediatrics Pediatric Adolescent Medicine Physician · Sandwich, MA NPI 1497960215

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.