What is William Siff's NPI number?

William Siff's National Provider Identifier (NPI) is 1861638322, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Siff's specialty?

William Siff is listed in the NPPES registry with a primary specialty of Acupuncturist (Other Service Providers).

Where is William Siff located?

William Siff's practice location on file with NPPES is 1 N Main St, Florence, MA 01062-1254.

What is William Siff's phone number?

The practice phone number listed in the NPPES registry for William Siff is (413) 587-0620.

Is William Siff's NPI active?

Yes — William Siff's NPI (1861638322) is active in the NPPES registry as of the last update on 2009-01-05.

IndividualActive

William Siff, LIC. AC.

NPI 1861638322 · Acupuncturist · Florence, MA

William Siff, LIC. AC. is a Acupuncturist provider in Florence, MA (NPI 1861638322).

Provider details

NPI number: 1861638322
Entity type: Individual
Primary specialty: AcupuncturistOther Service Providers
Credential: LIC. AC.
Sex: Male
Sole proprietor: No
License: 219534 (MA)

Specialties & taxonomies

AcupuncturistPrimary171100000XLicense 219534 (MA)
Other Service Providers

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
17 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1 N Main St

Florence, MA 01062-1254

Phone: (413) 587-0620

Street-level locationGet directions

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Mailing address