Doctor profile · Federal record

Dr. Timothy Monahan, M.D.

Dermatology Physician (CMS: Dermatology) · Dermatology Physician · Danielson, CT

  • NPI 1154321974
  • Accepts Medicare
  • MIPS 78.1 / 100 · 2023
  • 27 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
55 Green Hollow RD
Danielson, CT 062393533
(860) 779-1865
fax (860) 779-3820

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
April 28, 2010
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207N00000X — NUCC code
State licenses (2)
Connecticut #047373 · Georgia #56318

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154321974. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,339
Distinct HCPCS
10
Medicare allowed
$197,879
HCPCS Description Services Patients Avg allowed
17003 Destruction of precancer skin growth, 2-14 growths 1,287 262 $7
99213 Established patient office or other outpatient visit, 20-29 minutes 537 417 $95
17000 Destruction of precancer skin growth, 1 growth 425 350 $65
99214 Established patient office or other outpatient visit, 30-39 minutes 230 178 $135
11102 Biopsy of related skin growth, first growth 166 149 $109
99212 Established patient office or other outpatient visit, 10-19 minutes 141 127 $60
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 114 33 $1
96372 Injection of drug or substance under skin or into muscle 83 33 $15
99203 New patient office or other outpatient visit, 30-44 minutes 81 81 $116
99204 New patient office or other outpatient visit, 45-59 minutes 51 51 $175

In context: peer comparison

Among 2 peers in Danielson Dermatology Physician, average services per provider: 132. This provider delivers 25× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,984
Transactions
119
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 30 $439.76
Janssen Biotech, INC. 22 $342.61
Regeneron Healthcare Solutions, INC. 10 $270.56
Ucb, INC. 14 $221.36
Genzyme Corporation 9 $192.97
E.R. Squibb & Sons, L.L.C. 16 $192.57
Ortho Dermatologics, A Division of Bausch Health US, LLC 9 $142.68
Arcutis Biotherapeutics, INC. 3 $50.52
Pfizer INC. 2 $41.37
Incyte Corporation 1 $26.79
Lilly USA, LLC 1 $23.56
Novartis Pharmaceuticals Corporation 1 $20.39
Amgen INC. 1 $18.75

By nature of payment

Food and Beverage
$1,790
Education
$194

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
864
Patients
401
Total drug cost
$1,022,169
Drug Type Claims Patients Total cost
Clobetasol Propionate Generic 186 94 $11,807
Triamcinolone Acetonide Generic 121 80 $1,076
Ketoconazole Generic 101 61 $1,805
Fluorouracil Generic 50 42 $5,356
Otezla (Apremilast) Brand 47 0 $233,537
Prednisone Generic 47 11 $308
Minocycline Hcl Generic 46 15 $1,117
Dupixent Pen (Dupilumab) Brand 41 0 $187,118
Terbinafine Hcl Generic 40 17 $388
Metronidazole Generic 39 26 $2,579

Frequently asked questions

Auto-generated from federal data
What is Dr. Timothy Monahan's medical specialty?
Dr. Timothy Monahan practices Dermatology Physician in Danielson, CT.
Where does Dr. Timothy Monahan practice?
Dr. Timothy Monahan practices at 55 Green Hollow RD, Danielson, CT 062393533. Office phone: 8607791865.
What is Dr. Timothy Monahan's NPI?
Dr. Timothy Monahan's National Provider Identifier (NPI) is 1154321974, issued by NPPES.
Does Dr. Timothy Monahan accept Medicare assignment?
Yes. Dr. Timothy Monahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Monahan commonly perform?
Top Medicare-reported procedures in 2023: Destruction of precancer skin growth, 2-14 growths (HCPCS 17003); Established patient office or other outpatient visit (HCPCS 99213); Destruction of precancer skin growth, 1 growth (HCPCS 17000). Source: CMS Medicare Physician & Other Practitioners file.