Katie Brouillard O'Brien, NP
Dermatology Physician · Worcester, MA
Katie Brouillard O'Brien, NP is a dermatology physician with a practice address in Worcester, Massachusetts, and NPI 1801048921, issued on Oct 21, 2008. Check the license (Massachusetts 284603, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Katie Brouillard O'Brien
- Credential
- NP
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 284603 MA
Self-reported in NPPES; status is on the state search - Practice location
- 255 Park Ave Ste 509, Worcester, MA 01609
- Phone
- (508) 890-5500
- Enumerated
- Oct 21, 2008
- Record last updated
- Jan 26, 2026
- Fax
- (508) 890-5505
- Medicare enrollment
- Enrolled (PECOS I20081119000312); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 627 in Massachusetts → Look up another NPI →
Also registered at 255 Park Ave Ste 509
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara ArborDentist1861946097
- Arjun Bashyam, MDDermatology Physician1699354100
- Stanley Shustak, DDSGeneral Practice Dentistry1356494165
Verify Katie Brouillard O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 284603Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average dermatology physician in 2024
508 Medicare Part D claims for 190 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Ketoconazole98 claims
- Clobetasol Propionate58 claims
- Metronidazole49 claims
- Triamcinolone Acetonide46 claims
- Otezla25 claims
- Fluorouracil18 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 MIPS final score for 2023 (Medicare payment program): 98.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $426.14
16 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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
- Integrated Dermatology OF Worcester II LLCWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katie Brouillard O'Brien among 627 dermatology physician records in Massachusetts
Katie Brouillard O'Brien, NP is one of 627 dermatology physician records with a practice address in Massachusetts. 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 2008, is newer than 47% of them.
- NPI issued2008 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2008 · median 2008 among the 445 with a school on file
- Record last updated2026 · 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Massachusetts
There are 627 dermatology physician records in Massachusetts.
All 627 in Massachusetts → Every provider in Worcester → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Arjun Bashyam, MDWorcester, MA 016091699354100
- Seth Kates, M.D.Worcester, MA 016081760473557
- Ashley Schaefer, NPWorcester, MA 016101942452511
- Thomas Rosenfeld, M.D.Worcester, MA 016061942203856
- David Snook, MDWorcester, MA 016061700847670
- Michael Cunningham, M.D.Worcester, MA 016051558749606
- Vijaya Daniel, M.D.Worcester, MA 016051922426915
- Wei-Che Ko, MDWorcester, MA 016051821523606
Common questions
What is Katie Brouillard O'Brien, NP's NPI number?
Katie Brouillard O'Brien, NP's National Provider Identifier (NPI) is 1801048921, issued on Oct 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Katie Brouillard O'Brien, NP located?
The NPPES record lists a practice address at 255 Park Ave Ste 509, Worcester, MA, 01609. Phone: (508) 890-5500. Providers update this record themselves, so call before visiting.
How can I verify Katie Brouillard O'Brien, NP's license?
NPPES lists Massachusetts license number 284603, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katie Brouillard O'Brien, NP prescribe under Medicare Part D?
In 2024, Katie Brouillard O'Brien, NP had 508 Medicare Part D claims for 190 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Katie Brouillard O'Brien, NP's MIPS final score?
The 2023 MIPS final score is 98.3 of 100. 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.