Mary Stock, M.D.
NPI 1871589127 · Family Medicine Physician · Allentown, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Stock, M.D. is a Family Medicine Physician provider in Allentown, PA (NPI 1871589127).
Provider details
- NPI number
- 1871589127
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD434419 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 101 | 27 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 86 | 15 |
| Omeprazole | 77 | 17 |
| Amlodipine Besylate | 64 | 15 |
| Oxycodone Hcl | 48 | — |
| Gabapentin | 46 | 19 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,006 across 7 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
- 2005-09-22
- Last updated
- 2024-01-10
- Certified
- 2024-01-10
Frequently asked questions
- What is Mary Stock's NPI number?
- Mary Stock's National Provider Identifier (NPI) is 1871589127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Stock's specialty?
- Mary Stock is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Stock located?
- Mary Stock's practice location on file with NPPES is 1730 Chew St, Allentown, PA 18104-5549.
- What is Mary Stock's phone number?
- The practice phone number listed in the NPPES registry for Mary Stock is (610) 969-3500.
- Does Mary Stock accept Medicare?
- Mary Stock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Stock's NPI active?
- Yes — Mary Stock's NPI (1871589127) is active in the NPPES registry as of the last update on 2024-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.