Neurosurg Clin N Am
Cervical VertebraeIntervertebral Disc DegenerationSpinal Fusion
Dr. Gregory Callanan, DO
NPI1831625789PAC ID2769856178
- Medicare services, 2024
- 302
- Medicare patients, 2024
- 150
- Part D claims, 2024
- 106
- Publications
- 1
- Hospital affiliations
- 3
- Practice address
- 301 Lippincott Drive - 2nd Floor, Marlton, NJ 08053
- Practice phone
- Call (856) 581-7200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Virtua Home Care at West Jersey
Home Health Agency - Main Office · Marlton, New Jersey
Find Dr. Callanan'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. Gregory Callanan is an orthopedic surgeon in Marlton, New Jersey
Dr. Callanan practices at Virtua Home Care at West Jersey in Marlton, New Jersey.
Dr. Callanan's NPI, 1831625789, was assigned on May 11, 2017. Dr. Callanan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford in 2017. Dr. Callanan holds New Jersey license 25MB11717700.
NPI and contact details
- NPI
- 1831625789NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769856178
- NPI enumeration date
- May 11, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (856) 581-7200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Callanan practices at Virtua Home Care at West Jersey in Marlton, New Jersey
Dr. Callanan's primary practice is Virtua Home Care at West Jersey, at 301 Lippincott Drive - 2nd Floor, Marlton, NJ 08053. The practice phone is (856) 581-7200.
- Virtua Home Care at West Jersey301 Lippincott Drive - 2nd Floor, Marlton, NJ 08053Phone(856) 581-7200
Source: Dmand AI Affiliation Data
Dr. Gregory Callanan is affiliated with 5 sites of care and 1 medical group
Dr. Callanan's primary practice is Virtua Home Care at West Jersey in Marlton, New Jersey. Dr. Callanan is also affiliated with Virtua Voorhees Hospital. The medical group on file is Virtua Medical Group. Dmand AI also links Dr. Callanan to 2 more hospitals and 1 group practice or clinic, each named with a free account. Dr. Callanan's employer is on file too: a home health agency.
Virtua Home Care at West JerseyPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory Callanan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callanan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Virtua Home Care at West Jersey | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Callanan is one of 644 orthopedic surgeons in New Jersey
Orthopaedic surgery is Dr. Callanan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Callanan is board certified in 2018 - 2027 by the NJ State License. Dmand AI has Dr. Callanan's licenses on file in 2 states: New Jersey and Pennsylvania.
Specialties and state licenses
- Orthopaedic surgery, New JerseyPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists lower back pain and thoracic spine disorders among the conditions Dr. Callanan treats.
Orthopedic surgeons near Dr. Callanan
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. Gregory Callanan billed Medicare for 302 services in 2024
CMS data shows 302 Medicare services from Dr. Callanan across 6 procedure codes in 2024, for 150 Medicare patients. Medicare paid $22,985 for them. Every service was in an office.
Medicare services, 2024302
Medicare patients150
Paid by Medicare$22,985
Procedure codes6
Dr. Callanan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 322024: 181466%
- Imaging
- 2023: 172024: 121612%
Dr. Callanan compared with the New Jersey median for orthopedic surgeons, 2024
- Dr. Callanan
- New Jersey median
- Medicare services
- 302vs 1,32677% below
- Medicare patients
- 150vs 28046% below
- Part D claims
- 92vs 7916% above
Medians across 604 orthopedic surgeons in New Jersey with Dmand AI profiles that report each measure.
Dr. Callanan'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 Dr. Callanan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Callanan and other orthopedic surgeons in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Callanan treated 150 Medicare patients in 2024, average age 74
CMS counts 150 Medicare patients who saw Dr. Callanan in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Callanan's median patient age at 62, with 53% women.
Medicare patients, 2024150
Average age74
Average risk score1.19
Dr. Callanan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Callanan's Medicare patients by sex, 2024
- Women8053%
- Men7047%
Chronic conditions among Dr. Callanan's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes35%
- Ischemic heart disease29%
- Mood disorders22%
- Cancer21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Callanan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women53%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Callanan wrote 106 Medicare Part D claims in 2024
In 2024, Dr. Callanan wrote 106 Medicare Part D claims for 58 patients. 100% of them were for generic drugs. CMS names the drug for 92 of them, across 2 drugs with 11 or more claims each, at $1,139 in total drug cost.
Part D claims, 2024106
Drugs named by CMS2
Total drug cost$1,139
Part D patients58
Dr. Callanan'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.
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. Gregory Callanan ranks in the 49th percentile for spinal fusion in Medicare
Dr. Callanan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 38 procedures of spinal fusion by Dr. Callanan, more than 49% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Callanan ranks in Medicare procedure volume
- Spinal fusion
- 49th percentile38 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 40th percentile14 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. Gregory Callanan has 1 publication on record
Dmand AI links 1 paper to Dr. Callanan in 2021.
Papers1
Recent publications by Dr. Callanan
See who Dr. Callanan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Callanan 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. Gregory Callanan received $9,618 in industry payments from 2022 to 2025
CMS Open Payments shows 94 general payments to Dr. Callanan from 10 drug and device companies from 2022 to 2025. Travel and lodging make up the largest share, 55% of the total. Stryker Corporation paid the most, $7,382.
General payments to Dr. Callanan by program year, 2022 to 2025
General payments to Dr. Callanan by kind, 2022 to 2025
$9.6Kin total
- Travel and lodging$5,30655%
- Food and beverage$4,28945%
- Entertainment$220%
Companies that paid Dr. Callanan the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Callanan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford
Dr. Callanan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford in 2017.
- Medical school
- Board certified in 2018 - 2027
- Board certified in 2022 - 2026
Source: Dmand AI Professional Profile Data
Dr. Gregory Callanan accepts plans from 16 insurance carriers
Dr. Callanan is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Cigna
- Elevance
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- +8 more carriersWith a free account
Plan types Dr. Callanan accepts, by number of carriers
- PPO10
- HMO9
- Medicare7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Callanan'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 DataDmand AI Org Hierarchy 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Gregory Callanan
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. Gregory Callanan's NPI number?
Dr. Gregory Callanan's NPI number is 1831625789. It was assigned on May 11, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Callanan?
Dr. Gregory Callanan is an orthopedic surgeon in Marlton, New Jersey. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Gregory Callanan practice?
Dr. Callanan practices at 301 Lippincott Drive - 2nd Floor, Marlton, NJ 08053. Dr. Callanan's primary practice is Virtua Home Care at West Jersey in Marlton, New Jersey. Dmand AI also links Dr. Callanan to 2 hospitals and 1 group practice or clinic.
What is Dr. Gregory Callanan's office phone number?
The practice phone on file for Dr. Callanan is (856) 581-7200.
What is Dr. Gregory Callanan's medical license number?
Dr. Callanan holds New Jersey license 25MB11717700, one of the licenses on file in 2 states.
Which states has Dr. Gregory Callanan been licensed in?
Dmand AI has state licenses on file for Dr. Callanan in New Jersey and Pennsylvania.
Which hospitals is Dr. Gregory Callanan affiliated with?
Dr. Callanan is affiliated with Virtua Voorhees Hospital. Dmand AI links Dr. Callanan to 2 more hospitals.
What medical group is Dr. Gregory Callanan part of?
Dr. Callanan is linked to Virtua Medical Group.
Does Dr. Gregory Callanan accept Medicare?
Yes. CMS data shows Dr. Callanan billed Medicare for 302 services in 2024, and Dr. Callanan accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Callanan see?
CMS counts 150 Medicare patients who saw Dr. Callanan in 2024, with an average age of 74.
Show 8 more questionsShow fewer questions
Is Dr. Gregory Callanan board certified?
Yes. Dr. Callanan is board certified in 2018 - 2027 by the NJ State License.
What services does Dr. Gregory Callanan bill to Medicare?
In 2024, Dr. Callanan's most billed Medicare services were office visit, established patient (99214), diagnostic imaging (72110) and office visit, established patient (99213).
Where did Dr. Gregory Callanan go to medical school?
Dr. Callanan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford in 2017.
What drugs does Dr. Gregory Callanan prescribe most?
In 2024 Medicare Part D data, Dr. Callanan's most prescribed drugs by claims were Gabapentin and Celecoxib.
Has Dr. Gregory Callanan received payments from drug or device companies?
CMS Open Payments shows $9,618 in general payments to Dr. Callanan from 10 companies from 2022 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Gregory Callanan been practicing?
Dr. Callanan graduated from medical school in 2017, 9 years ago.
Does Dr. Gregory Callanan do research?
Dmand AI links 1 publication to Dr. Callanan.
What insurance does Dr. Gregory Callanan accept?
Dr. Callanan is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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