Doctor profile · Federal record

Dr. Madeline Twiss, PA-C

Physician Assistant · Physician Assistant · Potsdam, NY

  • NPI 1912428996
  • Accepts Medicare
  • MIPS 90.4 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
50 Leroy St
Potsdam, NY 136761786
(315) 265-3300
Additional location
241 North RD
Poughkeepsie, NY 126011154
(845) 483-5000

Credentials & registration

NPPES · NUCC
NPI registered
June 2017 — 9 yrs on file
Profile last updated
March 31, 2021
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
New York #020997

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912428996. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
175
Distinct HCPCS
2
Medicare allowed
$15,286
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 127 42 $77
99215 Established patient office or other outpatient visit, 40-54 minutes 48 20 $115

In context: peer comparison

Among 12 peers in Potsdam Physician Assistant, average services per provider: 109. This provider delivers 1.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$152
Transactions
8
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Corium, LLC 3 $48.85
Otsuka America Pharmaceutical, INC. 1 $27.50
Abbvie INC. 1 $22.88
Janssen Pharmaceuticals, INC 1 $20.90
Axsome Therapeutics, INC. 1 $17.51
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) 1 $14.25

By nature of payment

Food and Beverage
$152

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
881
Patients
127
Total drug cost
$22,932
Drug Type Claims Patients Total cost
Fluoxetine Hcl Generic 91 11 $936
Trazodone Hcl Generic 91 19 $1,872
Duloxetine Hcl Generic 86 11 $3,019
Gabapentin Generic 71 16 $1,104
Lamotrigine Generic 71 11 $999
Venlafaxine Hcl ER (Venlafaxine Hcl) Brand 68 12 $1,639
Quetiapine Fumarate Generic 67 11 $1,458
Prazosin Hcl Generic 55 0 $2,208
Bupropion Xl (Bupropion Hcl) Brand 54 14 $1,742
Escitalopram Oxalate Generic 46 11 $566

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Madeline Twiss's medical specialty?
Dr. Madeline Twiss practices Physician Assistant in Potsdam, NY.
Where does Dr. Madeline Twiss practice?
Dr. Madeline Twiss practices at 50 Leroy St, Potsdam, NY 136761786. Office phone: 3152653300.
What is Dr. Madeline Twiss's NPI?
Dr. Madeline Twiss's National Provider Identifier (NPI) is 1912428996, issued by NPPES.
Does Dr. Madeline Twiss accept Medicare assignment?
Yes. Dr. Madeline Twiss accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Madeline Twiss commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.