Zandra Elene Walton, MD-PHD
NPI 1386103372ActiveIndividual· Internal Medicine, Rheumatology· Boston, MA
Internal Medicine, Rheumatology (MD-PHD) in Boston, Massachusetts, trained at Perelman School of Med at the University of Pennsylvania (class of 2019). Their prescriptions cost Medicare Part D more than their services did: $582,927 for 269 claims, against $4,081 paid for services in 2024. Celgene Corporation was the largest of 3 companies reporting payments in 2025, $12,091 in all, mostly travel and lodging.
Overview
| NPI | 1386103372 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD-PHD |
| Sole proprietor | No |
| NPI issued | Mar 18, 2019 |
| Last updated in NPPES | Jun 2, 2024 |
| Certified by provider | Jun 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 1019118 | MA |
| Internal Medicine | 207R00000X | 1019118 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 72 across 5 procedure codes |
| Paid by Medicare | $4,081 |
Part D prescriptions in 2024
| Prescriptions (claims) | 269 · 544 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $582,927 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- The General Hospital CorporationBoston, MA · 1,267 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
- Wentworth-Douglass HospitalDover, NH
Industry payments (Open Payments)
- 2025$12,091 · 15 payments from 3 companies
- 2024$15,107 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celgene Corporation | $9,148 | 10 |
| E.R. Squibb & Sons, L.L.C. | $2,873 | 4 |
| Janssen Biotech, Inc. | $68.99 | 1 |
What the 2025 payments were for
- Travel and Lodging$8,952 · 5 payments
- Consulting Fee$2,840 · 2 payments
- Food and Beverage$229.27 · 7 payments
- Education$68.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Rheumatology providers in Boston
- 1891629846
- 1871814913
- 1407829948
- 1285155135
- 1235127432
- 1154388478
- 1043731466
- 1881721249
- 1063440733
- 1033234604
- 1982857793
- 1124058185
All Internal Medicine, Rheumatology providers in Massachusetts →