William Monacci, MD
NPI 1164493565 · Neurological Surgery Physician · Lancaster, PA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Monacci, MD is a Neurological Surgery Physician provider in Lancaster, PA (NPI 1164493565).
Provider details
- NPI number
- 1164493565
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD043038E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2006-02-01
- Last updated
- 2012-06-27
Frequently asked questions
- What is William Monacci's NPI number?
- William Monacci's National Provider Identifier (NPI) is 1164493565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Monacci's specialty?
- William Monacci is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Monacci located?
- William Monacci's practice location on file with NPPES is 1671 Crooked Oak Drive, Lancaster, PA 17601-4207.
- What is William Monacci's phone number?
- The practice phone number listed in the NPPES registry for William Monacci is (717) 569-5331.
- Does William Monacci accept Medicare?
- William Monacci is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Monacci's NPI active?
- Yes — William Monacci's NPI (1164493565) is active in the NPPES registry as of the last update on 2012-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.