Doctor profile · Federal record

Dr. Maria Winsor, AGNP-C

Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Adult Health Nurse Practitioner · Saint Louis, MO

  • NPI 1528593928
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 10 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6400 Clayton RD
Saint Louis, MO 631171850
(314) 647-6666
Mailing address
6400 Clayton RD Ste 303
Saint Louis, MO 631171850

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
October 2, 2019
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363LA2200X — NUCC code
State licenses (2)
Missouri #2016036106 · Illinois #209015720

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1528593928. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,266
Distinct HCPCS
10
Medicare allowed
$104,319
HCPCS Description Services Patients Avg allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 456 224 $88
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 368 127 $65
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 154 118 $61
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 73 72 $150
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 61 58 $108
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 58 33 $61
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 41 28 $99
99316 Nursing facility discharge management, more than 30 minutes 23 22 $108
99239 Hospital discharge day management, more than 30 minutes 18 18 $95
99214 Established patient office or other outpatient visit, 30-39 minutes 14 12 $106

In context: peer comparison

Among 71 peers in Saint Louis Adult Health Nurse Practitioner, average services per provider: 155. This provider delivers 8.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$59
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 2 $32.97
Otsuka America Pharmaceutical, INC. 1 $26.04

By nature of payment

Food and Beverage
$59

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
102
Patients
0
Total drug cost
$5,236
Drug Type Claims Patients Total cost
Lisinopril Generic 21 0 $121
Atorvastatin Calcium Generic 19 0 $164
Pantoprazole Sodium Generic 14 0 $293
Synthroid (Levothyroxine Sodium) Brand 13 0 $658
Diltiazem 24Hr ER (Cd) (Diltiazem Hcl) Brand 12 0 $257
Eliquis (Apixaban) Brand 12 0 $3,661
Amlodipine Besylate Generic 11 0 $82

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Maria Winsor's medical specialty?
Dr. Maria Winsor practices Adult Health Nurse Practitioner in Saint Louis, MO.
Where does Dr. Maria Winsor practice?
Dr. Maria Winsor practices at 6400 Clayton RD, Saint Louis, MO 631171850. Office phone: 3146476666.
What is Dr. Maria Winsor's NPI?
Dr. Maria Winsor's National Provider Identifier (NPI) is 1528593928, issued by NPPES.
Does Dr. Maria Winsor accept Medicare assignment?
Yes. Dr. Maria Winsor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maria Winsor commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308). Source: CMS Medicare Physician & Other Practitioners file.