Ellen Haddock, MD
Dermatology Physician · Fremont, CA
Ellen Haddock, MD is a dermatology physician with a practice address in Fremont, California, and NPI 1851823454, issued on Apr 1, 2017. Check the license (California A157683, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ellen Haddock
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A157683 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3200 Kearney St, Fremont, CA 94538
- Phone
- (510) 498-2374
- Enumerated
- Apr 1, 2017
- Record last updated
- Nov 18, 2024
- Medicare enrollment
- Enrolled (PECOS I20210825001419); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 3200 Kearney St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Neha AnandFamily Medicine Physician1477810836
- Lauren Auerbach, MDEmergency Medicine Physician1033678990
- Ritika Aulakh, D.OFamily Medicine Physician1346335072
- Rupal Badani, M.D.Pediatrics Physician1598857765
Verify Ellen Haddock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A157683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average dermatology physician in 2024
624 Medicare Part D claims for 216 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Ketoconazole77 claims
- Triamcinolone Acetonide75 claims
- Clobetasol Propionate53 claims
- Fluocinonide46 claims
- Minoxidil41 claims
- Mupirocin39 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $65.69
3 payments; by number, the most common kind was food and beverage; the largest payer was Arcutis Biotherapeutics, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Haddock among 2,083 dermatology physician records in California
Ellen Haddock, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 83% of them.
- NPI issued2017 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2017 · median 2006 among the 1,450 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Fremont → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Jeffrey Carmel, MDFremont, CA 945381235109893
- Charles Chiang, M.DFremont, CA 945381780889519
- Sunil Dhawan, MDFremont, CA 945381326018987
- Stephanie Friduss, MDFremont, CA 945381215012976
- David Gorsulowsky, MDFremont, CA 945381649272832
- Tatiana Grzeszkiewicz, M.D., PH.D.Fremont, CA 945381841386489
- Matthew Kanzler, MDFremont, CA 945381629032271
- Peter Lu, MDFremont, CA 945381275005209
Common questions
What is Ellen Haddock, MD's NPI number?
Ellen Haddock, MD's National Provider Identifier (NPI) is 1851823454, issued on Apr 1, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Haddock, MD located?
The NPPES record lists a practice address at 3200 Kearney St, Fremont, CA, 94538. Phone: (510) 498-2374. Providers update this record themselves, so call before visiting.
How can I verify Ellen Haddock, MD's license?
NPPES lists California license number A157683, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ellen Haddock, MD prescribe under Medicare Part D?
In 2024, Ellen Haddock, MD had 624 Medicare Part D claims for 216 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Ellen Haddock, MD's MIPS final score?
The 2023 MIPS final score is 75.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.