Dr. Timothy Michael Callaway, MD
- Medicare services, 2024
- 396
- Medicare patients, 2024
- 376
- Part D claims, 2019
- 84
- Hospital affiliations
- 3
- Industry payments
- $55
- Practice address
- 830 S Buncombe Rd, Greer, SC 29650
- Practice phone
- Call (864) 522-9729
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prisma Health Greer Memorial Hospital - Mammography
Mammography / Breast Imaging Center · Greer, South Carolina
Find Dr. Callaway'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. Timothy Michael Callaway is a hospitalist in Greer, South Carolina
Dr. Callaway practices at Prisma Health Greer Memorial Hospital - Mammography in Greer, South Carolina.
Dr. Callaway's NPI, 1245250554, was assigned on July 20, 2006. Dr. Callaway graduated from Eastern Virginia Medical School in 2005. Dr. Callaway holds South Carolina license 27998.
- NPI
- 1245250554NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628143757
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (864) 522-9729
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy Michael Callaway practices at Prisma Health Greer Memorial Hospital - Mammography in Greer, South Carolina
Dr. Callaway's primary practice is Prisma Health Greer Memorial Hospital - Mammography, at 830 S Buncombe Rd, Greer, SC 29650. The practice phone is (864) 522-9729.
- Prisma Health Greer Memorial Hospital - Mammography830 S Buncombe Rd, Greer, SC 29650Phone(864) 522-9729
Source: Dmand AI Affiliation Data
Dr. Timothy Michael Callaway is affiliated with 5 sites of care and 2 medical groups
Dr. Callaway's primary practice is Prisma Health Greer Memorial Hospital - Mammography in Greer, South Carolina. Dr. Callaway is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Callaway to 2 more hospitals, 1 home health agency and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy Michael Callaway's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callaway practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prisma Health Greer Memorial Hospital - Mammography | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy Michael Callaway is one of 426 hospitalists in South Carolina
Hospitalist is Dr. Callaway's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Callaway is licensed in South Carolina.
Specialties and state licenses
- Hospitalist, South CarolinaPrimary
Hospitalists near Dr. Callaway
Counts of hospitalists 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. Timothy Michael Callaway billed Medicare for 396 services in 2024
CMS data shows 396 Medicare services from Dr. Callaway across 2 procedure codes in 2024, for 376 Medicare patients. Medicare paid $46,640 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Callaway's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3512024: 39613%
Dr. Callaway compared with the South Carolina median for hospitalists, 2024
- Dr. Callaway
- South Carolina median
- Medicare services
- 396vs 50221% below
- Medicare patients
- 376vs 23659% above
- Part D claims
- 84vs 84Close to median
Medians across 409 hospitalists in South Carolina with Dmand AI profiles that report each measure.
Dr. Callaway'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. Callaway and other hospitalists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy Michael Callaway treated 376 Medicare patients in 2024, average age 78
CMS counts 376 Medicare patients who saw Dr. Callaway in 2024. The largest group is 75 to 84, with 134 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 2.01, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Callaway's median patient age at 65, with 52% women.
Dr. Callaway's Medicare patients by age, 2024
Dr. Callaway's Medicare patients by sex, 2024
- Women22660%
- Men15040%
Chronic conditions among Dr. Callaway's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Chronic kidney disease52%
- Ischemic heart disease49%
- Mood disorders47%
- Heart failure45%
- Depression44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Callaway'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
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy Michael Callaway wrote 84 Medicare Part D claims in 2019
In 2019, Dr. Callaway wrote 84 Medicare Part D claims. They cover 6 drugs, with $1,375 in total drug cost.
Dr. Callaway's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Timothy Michael Callaway takes part in Medicare
Dr. Callaway accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Timothy Michael Callaway received $55 in industry payments in 2023
CMS Open Payments shows 2 general payments to Dr. Callaway from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $55.
Companies that paid Dr. Callaway the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy Michael Callaway graduated from Eastern Virginia Medical School
Dr. Callaway graduated from Eastern Virginia Medical School in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy Michael Callaway'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Timothy Michael Callaway
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. Timothy Michael Callaway's NPI number?
Dr. Timothy Michael Callaway's NPI number is 1245250554. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy Michael Callaway?
Dr. Timothy Michael Callaway is a hospitalist in Greer, South Carolina. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Timothy Michael Callaway practice?
Dr. Callaway practices at 830 S Buncombe Rd, Greer, SC 29650. Dr. Callaway's primary practice is Prisma Health Greer Memorial Hospital - Mammography in Greer, South Carolina. Dmand AI also links Dr. Callaway to 2 hospitals, 1 home health agency and 1 medical group.
What is Dr. Timothy Michael Callaway's office phone number?
The practice phone on file for Dr. Callaway is (864) 522-9729.
What is Dr. Timothy Michael Callaway's medical license number?
Dr. Callaway holds South Carolina license 27998.
Which hospitals is Dr. Timothy Michael Callaway affiliated with?
Dr. Callaway is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Callaway to 2 more hospitals.
What medical group is Dr. Timothy Michael Callaway part of?
Dr. Callaway is linked to Prisma Health Medical Group. Dmand AI links Dr. Callaway to 1 more medical group.
Does Dr. Timothy Michael Callaway accept Medicare?
Yes. CMS data shows Dr. Callaway billed Medicare for 396 services in 2024, and Dr. Callaway accepts Medicare assignment.
How many Medicare patients does Dr. Timothy Michael Callaway see?
CMS counts 376 Medicare patients who saw Dr. Callaway in 2024, with an average age of 78.
What services does Dr. Timothy Michael Callaway bill to Medicare?
In 2024, Dr. Callaway's most billed Medicare services were hospital inpatient care (99223) and hospital inpatient care (99222).
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Where did Dr. Timothy Michael Callaway go to medical school?
Dr. Callaway graduated from Eastern Virginia Medical School in 2005.
What drugs does Dr. Timothy Michael Callaway prescribe most?
In 2019 Medicare Part D data, Dr. Callaway's most prescribed drugs by claims were Metoprolol Succinate, Potassium Chloride and Diltiazem 24hr ER.
Has Dr. Timothy Michael Callaway received payments from drug or device companies?
CMS Open Payments shows $55 in general payments to Dr. Callaway from 1 company from 2023 to 2023. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Timothy Michael Callaway been practicing?
Dr. Callaway graduated from medical school in 2005, 21 years ago.
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