Mary Youssef- Isaac, DDS
NPI 1326604489 · General Practice Dentistry · Woodlyn, PA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Youssef- Isaac, DDS is a General Practice Dentistry provider in Woodlyn, PA (NPI 1326604489).
Provider details
- NPI number
- 1326604489
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Female
- Sole proprietor
- No
- License
- D14177 (MN)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 21 | 20 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 6411 Richfield PkwyRichfield, MN 55423-6400Phone: (612) 869-3440
Registry dates
- Enumerated
- 2019-05-14
- Last updated
- 2022-02-08
- Certified
- 2022-02-08
Frequently asked questions
- What is Mary Youssef- Isaac's NPI number?
- Mary Youssef- Isaac's National Provider Identifier (NPI) is 1326604489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Youssef- Isaac's specialty?
- Mary Youssef- Isaac is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Mary Youssef- Isaac located?
- Mary Youssef- Isaac's practice location on file with NPPES is 550 Fairview Rd, Woodlyn, PA 19094-1014.
- What is Mary Youssef- Isaac's phone number?
- The practice phone number listed in the NPPES registry for Mary Youssef- Isaac is (610) 833-2660.
- Does Mary Youssef- Isaac accept Medicare?
- Mary Youssef- Isaac is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Youssef- Isaac's NPI active?
- Yes — Mary Youssef- Isaac's NPI (1326604489) is active in the NPPES registry as of the last update on 2022-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.