Dr. John D. McCallum III, MD
- Medicare services, 2024
- 1,131
- Medicare patients, 2024
- 331
- Part D claims, 2024
- 359
- Hospital affiliations
- 2
- Industry payments
- $6,270
- Practice address
- 2408 Whitney Ave, Hamden, CT 06518
- Practice phone
- Call (203) 407-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Connecticut Orthopaedic Specialists
Hamden, Connecticut
Find Dr. McCallum'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. John D. McCallum III is an orthopedic surgeon in Hamden, Connecticut
Dr. McCallum practices at Connecticut Orthopaedic Specialists in Hamden, Connecticut.
Dr. McCallum's NPI, 1447247606, was assigned on October 3, 2005. Dr. McCallum graduated from Perelman School of Med at the University of Pennsylvania in 1989. Dr. McCallum holds Connecticut license 34635.
- NPI
- 1447247606NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163335738
- NPI enumeration date
- October 3, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 407-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John D. McCallum III practices at Connecticut Orthopaedic Specialists in Hamden, Connecticut
Dr. McCallum's primary practice is Connecticut Orthopaedic Specialists, at 2408 Whitney Ave, Hamden, CT 06518 in South Central Ct County. The practice phone is (203) 407-3500.
- Connecticut Orthopaedic Specialists2408 Whitney Ave, Hamden, CT 06518 · South Central Ct CountyPhone(203) 407-3500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John D. McCallum III is affiliated with 8 sites of care and 3 medical groups
Dr. McCallum's primary practice is Connecticut Orthopaedic Specialists in Hamden, Connecticut. Dr. McCallum is also affiliated with Yale New Haven Hospital. The medical group on file is Connecticut Orthopaedics. Dmand AI also links Dr. McCallum to 1 more hospital, 3 home health agencies, 2 group practices and clinics and 2 medical groups, 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. John D. McCallum III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McCallum practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Connecticut Orthopaedic Specialists | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John D. McCallum III is one of 300 orthopedic surgeons in Connecticut
Orthopaedic surgery is Dr. McCallum's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. McCallum is licensed in Connecticut.
Specialties and state licenses
- Orthopaedic surgery, ConnecticutPrimary
Orthopedic surgeons near Dr. McCallum
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. John D. McCallum III billed Medicare for 1,131 services in 2024
CMS data shows 1,131 Medicare services from Dr. McCallum across 8 procedure codes in 2024, for 331 Medicare patients. Medicare paid $141,741 for them.
Dr. McCallum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 6432024: 51021%
- Office and hospital visits
- 2023: 4582024: 4414%
- Surgery
- 2023: 1342024: 10819%
- Drugs given in the office
- 2023: 922024: 7222%
Where Dr. McCallum's Medicare services took place, 2024
- In an office1,05093%
- In a facility817%
Dr. McCallum compared with the Connecticut median for orthopedic surgeons, 2024
- Dr. McCallum
- Connecticut median
- Medicare services
- 1,131vs 86431% above
- Medicare patients
- 331vs 20760% above
- Part D claims
- 324vs 1222.7 times
Medians across 297 orthopedic surgeons in Connecticut with Dmand AI profiles that report each measure.
Dr. McCallum'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McCallum and other orthopedic surgeons in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John D. McCallum III treated 331 Medicare patients in 2024, average age 76
CMS counts 331 Medicare patients who saw Dr. McCallum in 2024. The largest group is 75 to 84, with 173 patients. 75% of them have arthritis, and 75% have high blood pressure. 7% 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 Dr. McCallum's median patient age at 74, with 58% women.
Dr. McCallum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. McCallum's Medicare patients by sex, 2024
- Women19860%
- Men13340%
Chronic conditions among Dr. McCallum's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease28%
- Anxiety27%
- Mood disorders26%
- Depression21%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Dr. McCallum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John D. McCallum III wrote 359 Medicare Part D claims in 2024
In 2024, Dr. McCallum wrote 359 Medicare Part D claims for 216 patients. 100% of them were for generic drugs. CMS names the drug for 324 of them, across 3 drugs with 11 or more claims each, at $378 in total drug cost. In 2023, CMS named 354 claims across 3 drugs.
Dr. McCallum'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. McCallum's Part D claims, 2024
- Antibiotics81%290 of 359 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: 3542024: 3248%
Drugs named by CMS: 3 in 2024, 3 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. John D. McCallum III ranks in the 91st percentile for knee replacement in Medicare
Dr. McCallum accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 86 procedures of knee replacement by Dr. McCallum, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. McCallum ranks in Medicare procedure volume
- Knee replacement
- 91st percentile86 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 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. John D. McCallum III received $6,270 in industry payments from 2016 to 2025
CMS Open Payments shows 34 general payments to Dr. McCallum from 10 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 78% of the total. DePuy Synthes Sales Inc. paid the most, $3,895.
General payments to Dr. McCallum by program year, 2016 to 2025
General payments to Dr. McCallum by kind, 2016 to 2025
- Travel and lodging$4,91778%
- Food and beverage$1,35222%
Companies that paid Dr. McCallum the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John D. McCallum III graduated from Perelman School of Med at the University of Pennsylvania
Dr. McCallum graduated from Perelman School of Med at the University of Pennsylvania in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John D. McCallum III'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. John D. McCallum III
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. John D. McCallum III's NPI number?
Dr. John D. McCallum III's NPI number is 1447247606. It was assigned on October 3, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John D. McCallum III?
Dr. John D. McCallum III is an orthopedic surgeon in Hamden, Connecticut. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John D. McCallum III practice?
Dr. McCallum practices at 2408 Whitney Ave, Hamden, CT 06518. Dr. McCallum's primary practice is Connecticut Orthopaedic Specialists in Hamden, Connecticut. Dmand AI also links Dr. McCallum to 1 hospital, 3 home health agencies, 2 group practices and clinics and 2 medical groups.
What is Dr. John D. McCallum III's office phone number?
The practice phone on file for Dr. McCallum is (203) 407-3500.
What is Dr. John D. McCallum III's medical license number?
Dr. McCallum holds Connecticut license 34635.
Which hospitals is Dr. John D. McCallum III affiliated with?
Dr. McCallum is affiliated with Yale New Haven Hospital. Dmand AI links Dr. McCallum to 1 more hospital.
What medical group is Dr. John D. McCallum III part of?
Dr. McCallum is linked to Connecticut Orthopaedics. Dmand AI links Dr. McCallum to 2 more medical groups.
Does Dr. John D. McCallum III accept Medicare?
Yes. CMS data shows Dr. McCallum billed Medicare for 1,131 services in 2024, and Dr. McCallum accepts Medicare assignment.
How many Medicare patients does Dr. John D. McCallum III see?
CMS counts 331 Medicare patients who saw Dr. McCallum in 2024, with an average age of 76.
What services does Dr. John D. McCallum III bill to Medicare?
In 2024, Dr. McCallum's most billed Medicare services were diagnostic imaging (73562), office visit, established patient (99213) and office visit, new patient (99203).
Show 4 more questionsShow fewer questions
Where did Dr. John D. McCallum III go to medical school?
Dr. McCallum graduated from Perelman School of Med at the University of Pennsylvania in 1989.
What drugs does Dr. John D. McCallum III prescribe most?
In 2024 Medicare Part D data, Dr. McCallum's most prescribed drugs by claims were Amoxicillin, Clindamycin HCl and Meloxicam.
Has Dr. John D. McCallum III received payments from drug or device companies?
CMS Open Payments shows $6,270 in general payments to Dr. McCallum from 10 companies from 2016 to 2025. The largest total came from DePuy Synthes Sales Inc.
How long has Dr. John D. McCallum III been practicing?
Dr. McCallum graduated from medical school in 1989, 37 years ago.
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