Dr. Daniel Castro, MD
- Medicare services, 2024
- 327
- Medicare patients, 2024
- 43
- Part D claims, 2024
- 1,880
- Industry payments
- $1,600
- Affiliated sites
- 2
- Practice address
- 2231 Sandstone Dr, Morristown, TN 37814-2593
- Practice phone
- Call (423) 616-0625
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
US Diabetes Care And Surgical Specialty Of Morristown Tn
Multi-specialty group site · Morristown, Tennessee
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Dr. Daniel Castro is an internist in Morristown, Tennessee
Dr. Castro practices at US Diabetes Care And Surgical Specialty Of Morristown Tn in Morristown, Tennessee.
Dr. Castro's NPI, 1821002700, was assigned on July 28, 2006. Dr. Castro graduated from Loma Linda University School of Medicine in 1986. Dr. Castro holds Tennessee license MD0000056844.
- NPI
- 1821002700NPI Registry (opens in a new tab)
- NPI enumeration date
- July 28, 2006
- NPI status
- Active
- Practice phone
- (423) 616-0625
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Daniel Castro practices at US Diabetes Care and Surgical Specialty of Morristown Tn in Morristown, Tennessee
Dr. Castro's primary practice is US Diabetes Care and Surgical Specialty of Morristown Tn, at 2231 Sandstone Dr, Morristown, TN 37814-2593. The practice phone is (423) 616-0625.
- US Diabetes Care and Surgical Specialty of Morristown Tn2231 Sandstone Dr, Morristown, TN 37814-2593Phone(423) 616-0625
Source: Dmand AI Affiliation Data
Dr. Daniel Castro is affiliated with 2 sites of care and 2 medical groups
Dr. Castro's primary practice is US Diabetes Care And Surgical Specialty Of Morristown Tn in Morristown, Tennessee. The medical group on file is US Diabetes Care. Dmand AI also links Dr. Castro to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Daniel Castro's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castro practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| US Diabetes Care And Surgical Specialty Of Morristown Tn | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Castro is one of 2,427 internists in Tennessee
Internal medicine is Dr. Castro's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Castro is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Castro
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. Daniel Castro billed Medicare for 327 services in 2024
CMS data shows 327 Medicare services from Dr. Castro across 6 procedure codes in 2024, for 43 Medicare patients. Medicare paid $15,767 for them. Every service was in an office.
Dr. Castro's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1872024: 13428%
- Other services
- 2023: 02024: 125
- Office and hospital visits
- 2023: 1222024: 6844%
- Lab and pathology
- 2023: 382024: 0100%
Dr. Castro compared with the Tennessee median for internists, 2024
- Dr. Castro
- Tennessee median
- Medicare services
- 327vs 67151% below
- Medicare patients
- 43vs 22281% below
- Part D claims
- 1,501vs 3344.5 times
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. Castro'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. Daniel Castro treated 43 Medicare patients in 2024, average age 69
CMS counts 43 Medicare patients who saw Dr. Castro in 2024. The largest group is 65 to 74, with 20 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 1.57, 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. Castro's median patient age at 69, with 32% women.
Dr. Castro's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Castro's Medicare patients by sex, 2024
- Women2047%
- Men2353%
Chronic conditions among Dr. Castro's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Chronic kidney disease44%
- Ischemic heart disease44%
- COPD33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Castro's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women32%
- Men68%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Castro wrote 1,880 Medicare Part D claims in 2024
In 2024, Dr. Castro wrote 1,880 Medicare Part D claims for 280 patients. 45% of them were for generic drugs. CMS names the drug for 1,501 of them, across 44 drugs with 11 or more claims each, at $779,922 in total drug cost. In 2023, CMS named 2,567 claims across 67 drugs.
Dr. Castro's Part D claims by kind of drug, 2024
- Generic840 claims45%
- Brand-name873 claims46%
- Other167 claims9%
Dr. Castro'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,5672024: 1,50142%
Drugs named by CMS: 44 in 2024, 67 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
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Dr. Daniel Castro received $1,600 in industry payments from 2020 to 2025
CMS Open Payments shows 92 general payments to Dr. Castro from 23 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $330.
General payments to Dr. Castro by program year, 2020 to 2025
Companies that paid Dr. Castro 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. Daniel Castro graduated from Loma Linda University School of Medicine
Dr. Castro graduated from Loma Linda University School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Castro'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) |
| 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. Daniel Castro
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. Daniel Castro's NPI number?
Dr. Daniel Castro's NPI number is 1821002700. It was assigned on July 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Castro?
Dr. Daniel Castro is an internist in Morristown, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daniel Castro practice?
Dr. Castro practices at 2231 Sandstone Dr, Morristown, TN 37814-2593. Dr. Castro's primary practice is US Diabetes Care And Surgical Specialty Of Morristown Tn in Morristown, Tennessee. Dmand AI also links Dr. Castro to 1 group practice or clinic and 1 medical group.
What is Dr. Daniel Castro's office phone number?
The practice phone on file for Dr. Castro is (423) 616-0625.
What is Dr. Daniel Castro's medical license number?
Dr. Castro holds Tennessee license MD0000056844.
What medical group is Dr. Daniel Castro part of?
Dr. Castro is linked to US Diabetes Care. Dmand AI links Dr. Castro to 1 more medical group.
Does Dr. Daniel Castro accept Medicare?
Yes. CMS data shows Dr. Castro billed Medicare for 327 services in 2024.
How many Medicare patients does Dr. Daniel Castro see?
CMS counts 43 Medicare patients who saw Dr. Castro in 2024, with an average age of 69.
What services does Dr. Daniel Castro bill to Medicare?
In 2024, Dr. Castro's most billed Medicare services were medicare service (G0109), office visit, established patient (99213) and blood vessel study (93923).
Where did Dr. Daniel Castro go to medical school?
Dr. Castro graduated from Loma Linda University School of Medicine in 1986.
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What drugs does Dr. Daniel Castro prescribe most?
In 2024 Medicare Part D data, Dr. Castro's most prescribed drugs by claims were Jardiance, Metformin HCl ER and Tresiba Flextouch U-200.
Has Dr. Daniel Castro received payments from drug or device companies?
CMS Open Payments shows $1,600 in general payments to Dr. Castro from 23 companies from 2020 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Daniel Castro been practicing?
Dr. Castro graduated from medical school in 1986, 40 years ago.
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