NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. David A.N. Siegel, MD

Interventional Pain Medicine Physician in Pittsfield, MA · enumerated 2006 · practices at Berkshire Hills Health Inc.

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

National Provider Identifier

1861447955

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Registry record

Entity type Individual (Type 1)
Name Dr. David A.N. Siegel
Credential MD
Sex Male
Practice address Pittsfield, MA, 01201
Fax (413) 443-7662
Enumeration date May 24, 2006
Last updated in NPPES Sep 19, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2081P2900X Pain Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License 217196 (NY) Secondary
208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License 245337 (MA) Secondary
208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License 245337 (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
2799102 Other NY GHI
1000037102 Other NY AFFINITY HEALTH PLANS
P3611255 Other NY OXFORD
4C9164 Other NY HEATHNET
245337 Other MA MA LICENSE
9384662 Other NY PHCS
217196 Other NY WORKERS' COMPENSATION
3971993 Other NY AETNA HMO
7982471 Other NY AETNA PPO

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 1861447955 active?
Yes, as of the latest NPPES snapshot, NPI 1861447955 is active (record last updated 2012-09-19).
How do I verify David Siegel's NPI record?
Cross-check NPI 1861447955 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-19.