William Monahan, FNP
NPI 1588631873 · Family Nurse Practitioner · Newtown Square, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Monahan, FNP is a Family Nurse Practitioner provider in Newtown Square, PA (NPI 1588631873).
Provider details
- NPI number
- 1588631873
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- SP017755 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 36 | — |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 32 | 16 |
| Gabapentin | 24 | — |
| Pantoprazole Sodium | 23 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 | — |
| Dapagliflozin Propanediolbrand: Farxiga | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 4 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
Registry dates
- Enumerated
- 2006-03-05
- Last updated
- 2017-12-13
Frequently asked questions
- What is William Monahan's NPI number?
- William Monahan's National Provider Identifier (NPI) is 1588631873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Monahan's specialty?
- William Monahan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Monahan located?
- William Monahan's practice location on file with NPPES is 113 Ridgefield Rd, Newtown Square, PA 19073-3812.
- What is William Monahan's phone number?
- The practice phone number listed in the NPPES registry for William Monahan is (610) 356-5988.
- Does William Monahan accept Medicare?
- William Monahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Monahan's NPI active?
- Yes — William Monahan's NPI (1588631873) is active in the NPPES registry as of the last update on 2017-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.