SANDRA WITTHOLZ
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner FREDERICK, MD NPI 1508847799
Browse related groups: Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner MD Daiichi Sankyo Inc. All categories
General Payments — all program years on this page
$1,052.17
- Category: General Payments
- Program years: PY2021–2024
- Record count: 56
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $386.12 across 20 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $386.12 | 20 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Daiichi Sankyo Inc. | $58.70 | 2 |
| Astellas Pharma US Inc | $53.29 | 2 |
| Sage Therapeutics, Inc. | $50.00 | 2 |
| MAYNE PHARMA COMMERCIAL LLC | $36.99 | 2 |
| CooperSurgical, Inc. | $36.67 | 2 |
| Aspira Women's Health Inc | $24.60 | 3 |
| Sumitomo Pharma America, Inc. | $21.97 | 1 |
| Merck Sharp & Dohme Corporation | $19.87 | 1 |
| SHIELD THERAPEUTICS INC | $19.44 | 1 |
| Axonics Modulation Technologies, Inc. | $18.78 | 1 |
| MILLICENT US INC | $16.74 | 1 |
| Bayer HealthCare Pharmaceuticals Inc. | $15.62 | 1 |
| Amgen Inc. | $13.45 | 1 |
By program year
Records — PY2024 (20)
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.