Ann Clin Psychiatry
Compulsive BehaviorMemantineObsessive-Compulsive Disorder
Robert J. O'Brien Jr.
NPI1568566420PAC ID6709782436
- Medicare services, 2024
- 12,712
- Medicare patients, 2024
- 3,085
- Part D claims, 2024
- 348
- Publications
- 1
- MIPS score, 2024
- 75
- Practice address
- 955 Main St, Winchester, MA 01890
- Practice phone
- Call (781) 729-4878
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Robert J Obrien Jr MD & Assoc
Winchester, Massachusetts
Find Robert O'Brien's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Robert J. O'Brien Jr. is a dermatologist in Winchester, Massachusetts
Robert O'Brien practices at Robert J Obrien Jr MD & Assoc in Winchester, Massachusetts.
Robert O'Brien's NPI, 1568566420, was assigned on September 12, 2006. Robert O'Brien graduated from Tufts University School of Medicine in 1986. Robert O'Brien holds Massachusetts license 72781.
NPI and contact details
- NPI
- 1568566420NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709782436
- NPI enumeration date
- September 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 729-4878
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Robert J. O'Brien Jr. practices at Robert J Obrien Jr MD & Assoc in Winchester, Massachusetts
Robert O'Brien's primary practice is Robert J Obrien Jr MD & Assoc, at 955 Main St, Winchester, MA 01890 in Middlesex County. The practice phone is (781) 729-4878.
- Robert J Obrien Jr MD & Assoc955 Main St, Winchester, MA 01890 · Middlesex CountyPhone(781) 729-4878
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Robert J. O'Brien Jr. is affiliated with 2 sites of care and 1 medical group
Robert O'Brien's primary practice is Robert J Obrien Jr MD & Assoc in Winchester, Massachusetts. The medical group on file is Dermatology Associates of Winchester. Dmand AI also links Robert O'Brien to 1 more group practice or clinic, named with a free account.
Robert J Obrien Jr MD & AssocPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Robert J. O'Brien Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Robert O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Robert J Obrien Jr MD & Assoc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Robert J. O'Brien Jr. is one of 562 dermatologists in Massachusetts
Dermatology is Robert O'Brien's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Robert O'Brien is licensed in Massachusetts.
Specialties and state licenses
- Dermatology, MassachusettsPrimary
Dermatologists near Robert O'Brien
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
562dermatologists in Massachusetts
8dermatologists in Winchester
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Robert J. O'Brien Jr. billed Medicare for 12,712 services in 2024
CMS data shows 12,712 Medicare services from Robert O'Brien across 16 procedure codes in 2024, for 3,085 Medicare patients. Medicare paid $475,252 for them. Every service was in an office.
Medicare services, 202412,712
Medicare patients3,085
Paid by Medicare$475,252
Procedure codes16
Robert O'Brien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 12,5592024: 9,16127%
- Office and hospital visits
- 2023: 4,8042024: 3,55126%
Robert O'Brien compared with the Massachusetts median for dermatologists, 2024
- Robert O'Brien
- Massachusetts median
- Medicare services
- 12,712vs 1,6107.9 times
- Medicare patients
- 3,085vs 4896.3 times
- Part D claims
- 184vs 34747% below
Medians across 559 dermatologists in Massachusetts with Dmand AI profiles that report each measure.
Robert O'Brien's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Robert O'Brien?
Medicare shows one payer. Book a meeting to get commercial claims data for Robert O'Brien and other dermatologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Robert J. O'Brien Jr. treated 3,085 Medicare patients in 2024, average age 76
CMS counts 3,085 Medicare patients who saw Robert O'Brien in 2024. The largest group is 65 to 74, with 1,343 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Robert O'Brien's median patient age at 65, with 55% women.
Medicare patients, 20243,085
Average age76
Average risk score0.96
Also on Medicaid3%
Robert O'Brien's Medicare patients by age, 2024
Robert O'Brien's Medicare patients by sex, 2024
- Women1,79958%
- Men1,28642%
Chronic conditions among Robert O'Brien's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis44%
- Chronic kidney disease26%
- Anxiety22%
- Diabetes21%
- Ischemic heart disease21%
- Osteoporosis19%
Share of Medicare patients with each condition. A patient can have several.
Robert O'Brien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Robert J. O'Brien Jr. wrote 348 Medicare Part D claims in 2024
In 2024, Robert O'Brien wrote 348 Medicare Part D claims for 176 patients. 91% of them were for generic drugs. CMS names the drug for 184 of them, across 5 drugs with 11 or more claims each, at $4,294 in total drug cost. In 2023, CMS named 252 claims across 11 drugs.
Part D claims, 2024348
Drugs named by CMS5
Total drug cost$4,294
Part D patients176
Robert O'Brien's Part D claims by kind of drug, 2024
- Generic317 claims91%
- Brand-name31 claims9%
Robert O'Brien's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Robert O'Brien's Part D claims, 2024
- Antibiotics9%31 of 348 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2522024: 18427%
Drugs named by CMS: 5 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Robert J. O'Brien Jr. scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Robert O'Brien for performance year 2024, reported as part of a group. Robert O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 517 procedures of removal of skin lesions by Robert O'Brien, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Robert O'Brien ranks in Medicare procedure volume
- Removal of skin lesions
- 87th percentile517 procedures
- Skin biopsy
- 75th percentile99 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Robert J. O'Brien Jr. has 1 publication on record
Dmand AI links 1 paper to Robert O'Brien. Robert O'Brien's most frequent co-authors are Jon E. Grant and Suck Won Kim, MD.
Papers1
Robert O'Brien's most frequent co-authors
Recent publications by Robert O'Brien
See who Robert O'Brien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Robert O'Brien works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Robert J. O'Brien Jr. received $11,028 in industry payments from 2016 to 2025
CMS Open Payments shows 539 general payments to Robert O'Brien from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Janssen Pharmaceuticals, Inc paid the most, $1,655.
General payments to Robert O'Brien by program year, 2016 to 2025
General payments to Robert O'Brien by kind, 2016 to 2025
$11Kin total
- Food and beverage$10,19192%
- Travel and lodging$7387%
- Education$991%
Companies that paid Robert O'Brien the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Robert J. O'Brien Jr. graduated from Tufts University School of Medicine
Robert O'Brien graduated from Tufts University School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Robert J. O'Brien Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Robert J. O'Brien Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Robert J. O'Brien Jr.'s NPI number?
Robert J. O'Brien Jr.'s NPI number is 1568566420. It was assigned on September 12, 2006, and it is active in the NPI Registry.
What does Robert J. O'Brien Jr. specialize in?
Robert J. O'Brien Jr. is a dermatologist in Winchester, Massachusetts. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Robert J. O'Brien Jr. practice?
Robert O'Brien practices at 955 Main St, Winchester, MA 01890. Robert O'Brien's primary practice is Robert J Obrien Jr MD & Assoc in Winchester, Massachusetts. Dmand AI also links Robert O'Brien to 1 group practice or clinic.
What is Robert J. O'Brien Jr.'s office phone number?
The practice phone on file for Robert O'Brien is (781) 729-4878.
What is Robert J. O'Brien Jr.'s medical license number?
Robert O'Brien holds Massachusetts license 72781.
What medical group is Robert J. O'Brien Jr. part of?
Robert O'Brien is linked to Dermatology Associates of Winchester.
Does Robert J. O'Brien Jr. accept Medicare?
Yes. CMS data shows Robert O'Brien billed Medicare for 12,712 services in 2024, and Robert O'Brien accepts Medicare assignment.
What is Robert J. O'Brien Jr.'s MIPS score?
Robert O'Brien's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Robert J. O'Brien Jr. see?
CMS counts 3,085 Medicare patients who saw Robert O'Brien in 2024, with an average age of 76.
What services does Robert J. O'Brien Jr. bill to Medicare?
In 2024, Robert O'Brien's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
Show 6 more questionsShow fewer questions
Where did Robert J. O'Brien Jr. go to medical school?
Robert O'Brien graduated from Tufts University School of Medicine in 1986.
What drugs does Robert J. O'Brien Jr. prescribe most?
In 2024 Medicare Part D data, Robert O'Brien's most prescribed drugs by claims were Triamcinolone Acetonide, Betamethasone Dipropionate and Betamethasone Diprop Augmented.
Has Robert J. O'Brien Jr. received payments from drug or device companies?
CMS Open Payments shows $11,028 in general payments to Robert O'Brien from 33 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Robert J. O'Brien Jr. been practicing?
Robert O'Brien graduated from medical school in 1986, 40 years ago.
Does Robert J. O'Brien Jr. do research?
Dmand AI links 1 publication to Robert O'Brien.
Who does Robert J. O'Brien Jr. publish with?
Robert O'Brien's most frequent co-authors are Jon E. Grant (1 shared paper) and Suck Won Kim, MD (1 shared paper).
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