Doctor profile · Federal record

Dr. Siobhan Harder, APRN

Family Nurse Practitioner (CMS: Nurse Practitioner) · Essex, CT

  • NPI 1588032866
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
147 Westbrook RD
Essex, CT 064261512
(860) 358-5065
fax (860) 358-8653
Mailing address
28 Crescent St
Middletown, CT 064573654

Credentials & registration

NPPES · NUCC
NPI registered
September 2015 — 11 yrs on file
Profile last updated
February 5, 2026
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Connecticut #6307

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588032866. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
337
Distinct HCPCS
4
Medicare allowed
$32,113
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 125 70 $69
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 95 54 $104
99239 Hospital discharge day management, more than 30 minutes 83 83 $101
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 34 34 $153

In context: peer comparison

Among 3 peers in Essex Family Nurse Practitioner, average services per provider: 53. This provider delivers 6.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
172
Patients
75
Total drug cost
$1,457
Drug Type Claims Patients Total cost
Prednisone Generic 29 19 $87
Pantoprazole Sodium Generic 24 0 $337
Cephalexin Generic 21 21 $172
Metoprolol Succinate Generic 20 0 $290
Folic Acid Generic 16 0 $38
Carvedilol Generic 14 0 $178
Lisinopril Generic 13 0 $115
Azithromycin Generic 12 12 $65
Doxycycline Hyclate Generic 12 12 $114
Ciprofloxacin Hcl Generic 11 11 $60

Frequently asked questions

Auto-generated from federal data
What is Dr. Siobhan Harder's medical specialty?
Dr. Siobhan Harder practices Family Nurse Practitioner in Essex, CT.
Where does Dr. Siobhan Harder practice?
Dr. Siobhan Harder practices at 147 Westbrook RD, Essex, CT 064261512. Office phone: 8603585065.
What is Dr. Siobhan Harder's NPI?
Dr. Siobhan Harder's National Provider Identifier (NPI) is 1588032866, issued by NPPES.
Does Dr. Siobhan Harder accept Medicare assignment?
Yes. Dr. Siobhan Harder accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Siobhan Harder commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.