William Mullen, PA-C
NPI 1144255373 · Physician Assistant · Concord, NH
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mullen, PA-C is a Physician Assistant provider in Concord, NH (NPI 1144255373).
Provider details
- NPI number
- 1144255373
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 0507 (NH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$254 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 718 Smyth RdManchester, NH 03104-4098Phone: (603) 624-4366
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2025-03-31
- Certified
- 2025-03-31
Frequently asked questions
- What is William Mullen's NPI number?
- William Mullen's National Provider Identifier (NPI) is 1144255373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mullen's specialty?
- William Mullen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Mullen located?
- William Mullen's practice location on file with NPPES is 264 Pleasant St, Concord, NH 03301-2551.
- What is William Mullen's phone number?
- The practice phone number listed in the NPPES registry for William Mullen is (603) 224-3368.
- Does William Mullen accept Medicare?
- William Mullen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mullen's NPI active?
- Yes — William Mullen's NPI (1144255373) is active in the NPPES registry as of the last update on 2025-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.