Tess Petersen
NPI 1235691486 · Student in an Organized Health Care Education/Training Program · Wynnewood, PA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tess Petersen is a Student in an Organized Health Care Education/Training Program provider in Wynnewood, PA (NPI 1235691486).
Provider details
- NPI number
- 1235691486
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Female
- Sole proprietor
- No
- License
- 490438 (PA)
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 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 |
|---|---|---|
| Linaclotidebrand: Linzess | 29 | — |
| Omeprazole | 26 | 13 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 17 | 16 |
| Lactulose | 15 | — |
| Famotidine | 14 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 14 | 14 |
| Ondansetron Hcl | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$110 across 1 record (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
- 2019-04-04
- Last updated
- 2026-03-09
- Certified
- 2026-03-09
Frequently asked questions
- What is Tess Petersen's NPI number?
- Tess Petersen's National Provider Identifier (NPI) is 1235691486, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tess Petersen's specialty?
- Tess Petersen is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Tess Petersen located?
- Tess Petersen's practice location on file with NPPES is 100 E Lancaster Ave, Wynnewood, PA 19096-3450.
- What is Tess Petersen's phone number?
- The practice phone number listed in the NPPES registry for Tess Petersen is (484) 476-6424.
- Does Tess Petersen accept Medicare?
- Tess Petersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tess Petersen's NPI active?
- Yes — Tess Petersen's NPI (1235691486) is active in the NPPES registry as of the last update on 2026-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.