Dr. Thomas Kevin Obrien, MD
- Medicare services, 2024
- 736
- Medicare patients, 2024
- 427
- Part D claims, 2024
- 5,089
- Publications
- 1
- MIPS score, 2024
- 75
- Practice address
- 160 State Rte 37, Toms River, NJ 08755
- Practice phone
- Call (732) 286-0440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Deer Chase Medical Associates PA
Toms River, New Jersey
Find Dr. Obrien'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.
Dr. Thomas Kevin Obrien is an internist in Toms River, New Jersey
Dr. Obrien practices at Deer Chase Medical Associates PA in Toms River, New Jersey.
Dr. Obrien's NPI, 1952322588, was assigned on July 21, 2006. Dr. Obrien holds New Jersey license 25MA04864200.
- NPI
- 1952322588NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446285696
- NPI enumeration date
- July 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (732) 286-0440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Kevin Obrien practices at Deer Chase Medical Associates PA in Toms River, New Jersey
Dr. Obrien's primary practice is Deer Chase Medical Associates PA, at 160 State Rte 37, Toms River, NJ 08755 in Ocean County. The practice phone is (732) 286-0440.
- Deer Chase Medical Associates PA160 State Rte 37, Toms River, NJ 08755 · Ocean CountyPhone(732) 286-0440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Thomas Kevin Obrien is affiliated with 6 sites of care and 2 medical groups
Dr. Obrien's primary practice is Deer Chase Medical Associates PA in Toms River, New Jersey. Dr. Obrien is also affiliated with Community Medical Center. The medical group on file is Ocean Family & Geriatric Associates, LLC. Dmand AI also links Dr. Obrien to 2 more group practices and clinics, 2 home health agencies and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Thomas Kevin Obrien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Obrien practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Deer Chase Medical Associates PA | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Kevin Obrien is one of 4,226 internists in New Jersey
Internal medicine is Dr. Obrien's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Obrien is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Obrien
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas Kevin Obrien billed Medicare for 736 services in 2024
CMS data shows 736 Medicare services from Dr. Obrien across 5 procedure codes in 2024, for 427 Medicare patients. Medicare paid $42,618 for them. Every service was in an office.
Dr. Obrien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,5832024: 68057%
- Tests and treatments
- 2023: 2712024: 3687%
- Other services
- 2023: 2082024: 2090%
- Lab and pathology
- 2023: 202024: 0100%
Dr. Obrien compared with the New Jersey median for internists, 2024
- Dr. Obrien
- New Jersey median
- Medicare services
- 736vs 723Close to median
- Medicare patients
- 427vs 23185% above
- Part D claims
- 4,424vs 8305.3 times
Medians across 4,086 internists in New Jersey with Dmand AI profiles that report each measure.
Dr. Obrien'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Kevin Obrien treated 427 Medicare patients in 2024, average age 81
CMS counts 427 Medicare patients who saw Dr. Obrien in 2024. The largest group is 75 to 84, with 198 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Obrien's median patient age at 80, with 53% women.
Dr. Obrien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Obrien's Medicare patients by sex, 2024
- Women26662%
- Men16138%
Chronic conditions among Dr. Obrien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Diabetes38%
- Ischemic heart disease38%
- Chronic kidney disease28%
- Atrial fibrillation25%
- COPD22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Obrien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women53%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Kevin Obrien wrote 5,089 Medicare Part D claims in 2024
In 2024, Dr. Obrien wrote 5,089 Medicare Part D claims for 612 patients. 81% of them were for generic drugs. CMS names the drug for 4,424 of them, across 91 drugs with 11 or more claims each, at $645,177 in total drug cost. In 2023, CMS named 7,326 claims across 130 drugs.
Dr. Obrien's Part D claims by kind of drug, 2024
- Generic4,121 claims81%
- Brand-name936 claims18%
- Other32 claims1%
Dr. Obrien'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 Dr. Obrien's Part D claims, 2024
- Antibiotics2%92 of 5,089 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: 7,3262024: 4,42440%
Drugs named by CMS: 91 in 2024, 130 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
Dr. Thomas Kevin Obrien 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 Dr. Obrien for performance year 2024, reported as part of a group. Dr. Obrien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Thomas Kevin Obrien has 1 publication on record
Dmand AI links 1 paper to Dr. Obrien in 2025. Dr. Obrien's most frequent co-authors are Hanad Ibrahim Bashir, MD and Abhimanyu Reddy.
Dr. Obrien's most frequent co-authors
Recent publications by Dr. Obrien
See who Dr. Obrien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Obrien works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas Kevin Obrien received $23,651 in industry payments from 2016 to 2025
CMS Open Payments shows 1,189 general payments to Dr. Obrien from 49 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $5,145.
General payments to Dr. Obrien by program year, 2016 to 2025
General payments to Dr. Obrien by kind, 2016 to 2025
- Food and beverage$23,37399%
- Education$2771%
Companies that paid Dr. Obrien the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas Kevin Obrien's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas Kevin Obrien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thomas Kevin Obrien's NPI number?
Dr. Thomas Kevin Obrien's NPI number is 1952322588. It was assigned on July 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Kevin Obrien?
Dr. Thomas Kevin Obrien is an internist in Toms River, New Jersey. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Thomas Kevin Obrien practice?
Dr. Obrien practices at 160 State Rte 37, Toms River, NJ 08755. Dr. Obrien's primary practice is Deer Chase Medical Associates PA in Toms River, New Jersey. Dmand AI also links Dr. Obrien to 2 group practices and clinics, 2 home health agencies and 1 medical group.
What is Dr. Thomas Kevin Obrien's office phone number?
The practice phone on file for Dr. Obrien is (732) 286-0440.
What is Dr. Thomas Kevin Obrien's medical license number?
Dr. Obrien holds New Jersey license 25MA04864200.
Which hospitals is Dr. Thomas Kevin Obrien affiliated with?
Dr. Obrien is affiliated with Community Medical Center.
What medical group is Dr. Thomas Kevin Obrien part of?
Dr. Obrien is linked to Ocean Family & Geriatric Associates, LLC. Dmand AI links Dr. Obrien to 1 more medical group.
Does Dr. Thomas Kevin Obrien accept Medicare?
Yes. CMS data shows Dr. Obrien billed Medicare for 736 services in 2024, and Dr. Obrien accepts Medicare assignment.
What is Dr. Thomas Kevin Obrien's MIPS score?
Dr. Obrien's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Thomas Kevin Obrien see?
CMS counts 427 Medicare patients who saw Dr. Obrien in 2024, with an average age of 81.
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What services does Dr. Thomas Kevin Obrien bill to Medicare?
In 2024, Dr. Obrien's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and heart test or procedure (93000).
What drugs does Dr. Thomas Kevin Obrien prescribe most?
In 2024 Medicare Part D data, Dr. Obrien's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Rosuvastatin Calcium.
Has Dr. Thomas Kevin Obrien received payments from drug or device companies?
CMS Open Payments shows $23,651 in general payments to Dr. Obrien from 49 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Thomas Kevin Obrien been practicing?
Dr. Obrien graduated from medical school in 1983, 43 years ago.
Does Dr. Thomas Kevin Obrien do research?
Dmand AI links 1 publication to Dr. Obrien.
Who does Dr. Thomas Kevin Obrien publish with?
Dr. Obrien's most frequent co-authors are Hanad Ibrahim Bashir, MD (1 shared paper) and Abhimanyu Reddy (1 shared paper).
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