Doctor profile · Federal record

Dr. Caitlin Castellot, NP

Women's Health Nurse Practitioner (CMS: Nurse Practitioner) · Acton, MA

  • NPI 1558677039
  • Accepts Medicare
  • MIPS 87.1 / 100 · 2023
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
321 Main St
Acton, MA 017203718
(978) 635-8700
fax (978) 635-8923

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
July 12, 2016
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363LW0102X — NUCC code
State license (1)
Massachusetts #2258894

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558677039. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
375
Distinct HCPCS
10
Medicare allowed
$18,028
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 75 68 $86
99214 Established patient office or other outpatient visit, 30-39 minutes 67 58 $121
36415 Insertion of needle into vein for collection of blood sample 60 51 $6
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 35 34 $8
80053 Blood test, comprehensive group of blood chemicals 30 30 $10
80061 Blood test, lipids (cholesterol and triglycerides) 24 21 $13
84443 Blood test, thyroid stimulating hormone (tsh) 17 17 $16
G0008 Administration of influenza virus vaccine 17 17 $31
90662 Influenza vaccine split virus, preservative free 16 16 $72
83036 Hemoglobin a1c level 12 12 $10

In context: peer comparison

Among 1 peers in Acton Women's Health Nurse Practitioner, average services per provider: 31. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Gilead Sciences, INC. 1 $23.48

By nature of payment

Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,402
Patients
647
Total drug cost
$77,684
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 321 143 $7,811
Lisinopril Generic 170 75 $1,761
Levothyroxine Sodium Generic 131 59 $1,937
Amlodipine Besylate Generic 103 61 $1,442
Losartan Potassium Generic 99 48 $1,785
Hydrochlorothiazide Generic 84 43 $285
Omeprazole Generic 70 33 $1,275
Metoprolol Succinate Generic 68 31 $1,712
Gabapentin Generic 61 25 $1,244
Rosuvastatin Calcium Generic 54 27 $3,499

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caitlin Castellot's medical specialty?
Dr. Caitlin Castellot practices Women's Health Nurse Practitioner in Acton, MA.
Where does Dr. Caitlin Castellot practice?
Dr. Caitlin Castellot practices at 321 Main St, Acton, MA 017203718. Office phone: 9786358700.
What is Dr. Caitlin Castellot's NPI?
Dr. Caitlin Castellot's National Provider Identifier (NPI) is 1558677039, issued by NPPES.
Does Dr. Caitlin Castellot accept Medicare assignment?
Yes. Dr. Caitlin Castellot accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caitlin Castellot commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.