Doctor profile · Federal record

Dr. Chelsea Slozak, FNP-P

Family Nurse Practitioner (CMS: Nurse Practitioner) · West Springfield, MA

  • NPI 1104367978
  • Accepts Medicare
  • MIPS 28.3 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
50 Union Street
West Springfield, MA 01089
(413) 732-0040

Credentials & registration

NPPES · NUCC
NPI registered
March 2017 — 9 yrs on file
Profile last updated
May 8, 2025
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Massachusetts #RN2274333

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104367978. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
597
Distinct HCPCS
4
Medicare allowed
$49,729
HCPCS Description Services Patients Avg allowed
80307 Testing for presence of drug, by chemistry analyzers 248 46 $61
G0480 Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms 131 36 $111
99213 Established patient office or other outpatient visit, 20-29 minutes 117 32 $78
99214 Established patient office or other outpatient visit, 30-39 minutes 101 32 $109

In context: peer comparison

Among 12 peers in this city , average services per provider: 130. This provider delivers 4.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$448
Transactions
19
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Gilead Sciences, Inc. 13 $286.75
Braeburn Inc. 2 $56.10
Alkermes, Inc. 2 $46.80
ABBVIE INC. 1 $32.44
Indivior Inc. 1 $26.19

By nature of payment

Food and Beverage
$448

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
640
Patients
94
Total drug cost
$128,514
Drug Type Claims Patients Total cost
Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) Brand 462 70 $32,110
Suboxone (Buprenorphine Hcl/Naloxone Hcl) Brand 82 24 $20,735
Zubsolv (Buprenorphine Hcl/Naloxone Hcl) Brand 30 0 $9,712
Acamprosate Calcium Generic 18 0 $1,826
Sublocade (Buprenorphine) Brand 18 0 $36,421
Vivitrol (Naltrexone Microspheres) Brand 17 0 $27,325
Naltrexone Hcl Generic 13 0 $385

Frequently asked questions

Auto-generated from federal data
What is Dr. Chelsea Slozak's medical specialty?
Dr. Chelsea Slozak practices Family Nurse Practitioner in West Springfield, MA.
Where does Dr. Chelsea Slozak practice?
Dr. Chelsea Slozak practices at 50 Union Street, West Springfield, MA 01089. Office phone: 4137320040.
What is Dr. Chelsea Slozak's NPI?
Dr. Chelsea Slozak's National Provider Identifier (NPI) is 1104367978, issued by NPPES.
Does Dr. Chelsea Slozak accept Medicare assignment?
Yes. Dr. Chelsea Slozak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chelsea Slozak commonly perform?
Top Medicare-reported procedures in 2023: Testing for presence of drug, by chemistry analyzers (HCPCS 80307); Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms (HCPCS G0480); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.