Doctor profile · Federal record

Dr. Ellen Haddock, MD

Dermatology Physician (CMS: Dermatology) · Student in an Organized Health Care Education/Training Program · Fremont, CA

  • NPI 1851823454
  • Accepts Medicare
  • MIPS 83.5 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3200 Kearney St
Fremont, CA 945382299
(510) 498-2374
Additional location
5000 Civic Center Dr
San Rafael, CA 949034184
(415) 499-0100
fax (415) 499-0290
Mailing address
Po Box 276950
Sacramento, CA 958276950

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
November 18, 2024
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207N00000X — NUCC code
State license (1)
California #A157683

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851823454. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,772
Distinct HCPCS
10
Medicare allowed
$136,152
HCPCS Description Services Patients Avg allowed
17003 Destruction of precancer skin growth, 2-14 growths 466 104 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 371 273 $103
17000 Destruction of precancer skin growth, 1 growth 212 171 $63
11102 Biopsy of related skin growth, first growth 137 123 $116
99203 New patient office or other outpatient visit, 30-44 minutes 137 137 $126
99214 Established patient office or other outpatient visit, 30-39 minutes 89 60 $146
11103 Biopsy of related skin growth, each additional growth 54 39 $61
17110 Destruction of skin growth, 1-14 growths 53 51 $140
99212 Established patient office or other outpatient visit, 10-19 minutes 43 43 $65
11900 Injection into skin growth, 1-7 growths 40 19 $64

In context: peer comparison

Among 6 peers in this city , average services per provider: 272. This provider delivers 6.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$66
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Arcutis Biotherapeutics, Inc. 3 $65.69

By nature of payment

Food and Beverage
$66

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
484
Patients
314
Total drug cost
$14,212
Drug Type Claims Patients Total cost
Ketoconazole Generic 97 74 $2,270
Clobetasol Propionate Generic 72 49 $3,949
Triamcinolone Acetonide Generic 61 49 $849
Minoxidil Generic 46 11 $630
Hydrocortisone Generic 40 35 $348
Fluocinonide Generic 31 24 $1,647
Valacyclovir (Valacyclovir Hcl) Brand 29 18 $260
Mupirocin Generic 28 27 $332
Doxycycline Monohydrate Generic 22 11 $643
Fluorouracil Generic 18 16 $1,475

Frequently asked questions

Auto-generated from federal data
What is Dr. Ellen Haddock's medical specialty?
Dr. Ellen Haddock practices Dermatology Physician in Fremont, CA.
Where does Dr. Ellen Haddock practice?
Dr. Ellen Haddock practices at 3200 Kearney St, Fremont, CA 945382299. Office phone: 5104982374.
What is Dr. Ellen Haddock's NPI?
Dr. Ellen Haddock's National Provider Identifier (NPI) is 1851823454, issued by NPPES.
Does Dr. Ellen Haddock accept Medicare assignment?
Yes. Dr. Ellen Haddock accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ellen Haddock 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.