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Dr. Michael B. O'Sullivan, MD
NPI1376981266PAC ID2163735580
- Medicare services, 2024
- 2,191
- Medicare patients, 2024
- 576
- Part D claims, 2024
- 706
- Publications
- 9
- Hospital affiliations
- 5
- Practice address
- 50 Wason Ave, Springfield, MA 01107
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD
Acute Care Hospital outpatient department · Springfield, Massachusetts
Find Dr. O'Sullivan'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. Michael B. O'Sullivan is an orthopedic surgeon in Springfield, Massachusetts
Dr. O'Sullivan practices at Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD in Springfield, Massachusetts.
Dr. O'Sullivan's NPI, 1376981266, was assigned on June 13, 2013. Dr. O'Sullivan graduated from Tufts University School of Medicine in 2013. Dr. O'Sullivan holds Massachusetts license 283812.
NPI and contact details
- NPI
- 1376981266NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163735580
- NPI enumeration date
- June 13, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael B. O'Sullivan practices at Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD in Springfield, Massachusetts
Dr. O'Sullivan's primary practice is Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD, at 50 Wason Ave, Springfield, MA 01107.
- Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD50 Wason Ave, Springfield, MA 01107
Source: Dmand AI Affiliation Data
Dr. Michael B. O'Sullivan is affiliated with 14 sites of care and 2 medical groups
Dr. O'Sullivan's primary practice is Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD in Springfield, Massachusetts. Dr. O'Sullivan is also affiliated with Baystate Medical Center. The medical group on file is Northeast Orthopaedic Alliance. Dmand AI also links Dr. O'Sullivan to 4 more hospitals, 5 home health agencies, 2 group practices and clinics, 1 ambulatory surgery center and 1 medical group, each named with a free account.
Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael B. O'Sullivan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Sullivan practices, 14 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD | Available with a free account |
| +13 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Michael B. O'Sullivan is one of 593 orthopedic surgeons in Massachusetts
Orthopaedic surgery is Dr. O'Sullivan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. O'Sullivan is licensed in Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, MassachusettsPrimary
Orthopedic surgeons near Dr. O'Sullivan
Counts of orthopedic surgeons 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. Michael B. O'Sullivan billed Medicare for 2,191 services in 2024
CMS data shows 2,191 Medicare services from Dr. O'Sullivan across 13 procedure codes in 2024, for 576 Medicare patients. Medicare paid $250,365 for them.
Medicare services, 20242,191
Medicare patients576
Paid by Medicare$250,365
Procedure codes13
Dr. O'Sullivan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 6882024: 79215%
- Office and hospital visits
- 2023: 5102024: 5447%
- Imaging
- 2023: 1,0662024: 50752%
- Surgery
- 2023: 3252024: 3487%
Where Dr. O'Sullivan's Medicare services took place, 2024
- In an office2,01892%
- In a facility1738%
Dr. O'Sullivan compared with the Massachusetts median for orthopedic surgeons, 2024
- Dr. O'Sullivan
- Massachusetts median
- Medicare services
- 2,191vs 6723.3 times
- Medicare patients
- 576vs 30291% above
- Part D claims
- 639vs 5012.8 times
Medians across 543 orthopedic surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. O'Sullivan'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. Michael B. O'Sullivan treated 576 Medicare patients in 2024, average age 72
CMS counts 576 Medicare patients who saw Dr. O'Sullivan in 2024. The largest group is 65 to 74, with 274 patients. 75% of them have arthritis, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. O'Sullivan's median patient age at 67, with 58% women.
Medicare patients, 2024576
Average age72
Average risk score1.11
Also on Medicaid22%
Dr. O'Sullivan's Medicare patients by age, 2024
Dr. O'Sullivan's Medicare patients by sex, 2024
- Women34159%
- Men23541%
Chronic conditions among Dr. O'Sullivan's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol70%
- Anxiety32%
- Mood disorders32%
- Depression29%
- Diabetes24%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Sullivan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael B. O'Sullivan wrote 706 Medicare Part D claims in 2024
In 2024, Dr. O'Sullivan wrote 706 Medicare Part D claims for 366 patients. 98% of them were for generic drugs. CMS names the drug for 639 of them, across 8 drugs with 11 or more claims each, at $3,602 in total drug cost. In 2023, CMS named 488 claims across 7 drugs.
Part D claims, 2024706
Drugs named by CMS8
Total drug cost$3,602
Part D patients366
Dr. O'Sullivan's Part D claims by kind of drug, 2024
- Generic692 claims98%
- Brand-name14 claims2%
Dr. O'Sullivan'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. O'Sullivan's Part D claims, 2024
- Opioids20%138 of 706 claims
- Antibiotics32%223 of 706 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: 4882024: 63931%
Drugs named by CMS: 8 in 2024, 7 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. Michael B. O'Sullivan ranks in the 98th percentile for hip replacement in Medicare
Dr. O'Sullivan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Sullivan as offering telehealth. CMS counts 106 procedures of hip replacement by Dr. O'Sullivan, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. O'Sullivan ranks in Medicare procedure volume
- Knee replacement
- 97th percentile146 procedures
- Hip replacement
- 98th percentile106 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael B. O'Sullivan has 9 publications on record
Dmand AI links 9 papers to Dr. O'Sullivan, published from 2016 to 2025. 2016 was the busiest year, with 2. The most frequent topics are Arthritis, Rheumatoid. Dr. O'Sullivan's most frequent co-authors are Benjamin Kerzner, MD, Tessa Balach and Jessica M. Clement, MD.
Papers9
Years published2016 to 2025
Dr. O'Sullivan's papers by year, 2016 to 2025
Topics Dr. O'Sullivan writes about most
- Arthritis, Rheumatoid
Dr. O'Sullivan's most frequent co-authors
Recent publications by Dr. O'Sullivan
BracesCasts, SurgicalScoliosis
See who Dr. O'Sullivan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Sullivan works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael B. O'Sullivan received $6,323 in industry payments from 2020 to 2025
CMS Open Payments shows 18 general payments to Dr. O'Sullivan from 4 drug and device companies from 2020 to 2025. Education make up the largest share, 59% of the total. Smith & Nephew, Inc. paid the most, $4,777.
General payments to Dr. O'Sullivan by program year, 2020 to 2025
General payments to Dr. O'Sullivan by kind, 2020 to 2025
$6.3Kin total
- Education$3,75059%
- Travel and lodging$1,80429%
- Food and beverage$77012%
Companies that paid Dr. O'Sullivan the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael B. O'Sullivan graduated from Tufts University School of Medicine
Dr. O'Sullivan graduated from Tufts University School of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael B. O'Sullivan'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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)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 Dr. Michael B. O'Sullivan
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. Michael B. O'Sullivan's NPI number?
Dr. Michael B. O'Sullivan's NPI number is 1376981266. It was assigned on June 13, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael B. O'Sullivan?
Dr. Michael B. O'Sullivan is an orthopedic surgeon in Springfield, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Michael B. O'Sullivan practice?
Dr. O'Sullivan practices at 50 Wason Ave, Springfield, MA 01107. Dr. O'Sullivan's primary practice is Baystate Children's Specialty Cente - Pediatric Pulmonology - HOPD in Springfield, Massachusetts. Dmand AI also links Dr. O'Sullivan to 4 hospitals, 5 home health agencies, 2 group practices and clinics, 1 ambulatory surgery center and 1 medical group.
What is Dr. Michael B. O'Sullivan's medical license number?
Dr. O'Sullivan holds Massachusetts license 283812.
Which hospitals is Dr. Michael B. O'Sullivan affiliated with?
Dr. O'Sullivan is affiliated with Baystate Medical Center. Dmand AI links Dr. O'Sullivan to 4 more hospitals.
What medical group is Dr. Michael B. O'Sullivan part of?
Dr. O'Sullivan is linked to Northeast Orthopaedic Alliance. Dmand AI links Dr. O'Sullivan to 1 more medical group.
Does Dr. Michael B. O'Sullivan accept Medicare?
Yes. CMS data shows Dr. O'Sullivan billed Medicare for 2,191 services in 2024, and Dr. O'Sullivan accepts Medicare assignment.
Does Dr. Michael B. O'Sullivan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. O'Sullivan as offering telehealth services.
How many Medicare patients does Dr. Michael B. O'Sullivan see?
CMS counts 576 Medicare patients who saw Dr. O'Sullivan in 2024, with an average age of 72.
What services does Dr. Michael B. O'Sullivan bill to Medicare?
In 2024, Dr. O'Sullivan's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99214) and diagnostic imaging (73564).
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Where did Dr. Michael B. O'Sullivan go to medical school?
Dr. O'Sullivan graduated from Tufts University School of Medicine in 2013.
What drugs does Dr. Michael B. O'Sullivan prescribe most?
In 2024 Medicare Part D data, Dr. O'Sullivan's most prescribed drugs by claims were Meloxicam, Amoxicillin and Tramadol HCl.
Has Dr. Michael B. O'Sullivan received payments from drug or device companies?
CMS Open Payments shows $6,323 in general payments to Dr. O'Sullivan from 4 companies from 2020 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. Michael B. O'Sullivan been practicing?
Dr. O'Sullivan graduated from medical school in 2013, 13 years ago.
Does Dr. Michael B. O'Sullivan do research?
Dmand AI links 9 publications to Dr. O'Sullivan, published from 2016 to 2025.
Who does Dr. Michael B. O'Sullivan publish with?
Dr. O'Sullivan's most frequent co-authors are Benjamin Kerzner, MD (2 shared papers), Tessa Balach (1 shared paper) and Jessica M. Clement, MD (1 shared paper).
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