Dr. Garvin Kent Chastain, MD
- Medicare services, 2024
- 1,593
- Medicare patients, 2024
- 470
- Part D claims, 2024
- 11,768
- MIPS score, 2024
- 88
- Hospital affiliations
- 2
- Practice address
- 1060 William NW Way, Cleveland, TN 37312
- Practice phone
- Call (423) 478-1050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cleveland Medical Associates
Cleveland, Tennessee
Find Dr. Chastain'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. Garvin Kent Chastain is an internist in Cleveland, Tennessee
Dr. Chastain practices at Cleveland Medical Associates in Cleveland, Tennessee.
Dr. Chastain's NPI, 1518933829, was assigned on February 27, 2006. Dr. Chastain graduated from University of Tennessee, Hsc, College of Medicine in 1982. Dr. Chastain holds Tennessee license 16293.
- NPI
- 1518933829NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668477373
- NPI enumeration date
- February 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 478-1050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Garvin Kent Chastain practices at Cleveland Medical Associates in Cleveland, Tennessee
Dr. Chastain's primary practice is Cleveland Medical Associates, at 1060 William NW Way, Cleveland, TN 37312 in Bradley County. The practice phone is (423) 478-1050.
- Cleveland Medical Associates1060 William NW Way, Cleveland, TN 37312 · Bradley CountyPhone(423) 478-1050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Garvin Kent Chastain is affiliated with 9 sites of care and 3 medical groups
Dr. Chastain's primary practice is Cleveland Medical Associates in Cleveland, Tennessee. Dr. Chastain is also affiliated with Bradley Medical Center. The medical group on file is Cleveland Medical Associates. Dmand AI also links Dr. Chastain to 1 more hospital, 4 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. Garvin Kent Chastain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chastain practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cleveland Medical Associates | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Garvin Kent Chastain is one of 2,427 internists in Tennessee
Internal medicine is Dr. Chastain's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chastain is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Chastain
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. Garvin Kent Chastain billed Medicare for 1,593 services in 2024
CMS data shows 1,593 Medicare services from Dr. Chastain across 14 procedure codes in 2024, for 470 Medicare patients. Medicare paid $91,450 for them.
Dr. Chastain's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0082024: 70630%
- Other services
- 2023: 5842024: 5545%
- Surgery
- 2023: 1042024: 19184%
- Tests and treatments
- 2023: 1202024: 1265%
- Lab and pathology
- 2023: 512024: 1669%
Where Dr. Chastain's Medicare services took place, 2024
- In an office1,31983%
- In a facility27417%
Dr. Chastain compared with the Tennessee median for internists, 2024
- Dr. Chastain
- Tennessee median
- Medicare services
- 1,593vs 6712.4 times
- Medicare patients
- 470vs 2222.1 times
- Part D claims
- 11,029vs 33433.0 times
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. Chastain'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. Chastain?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chastain and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Garvin Kent Chastain treated 470 Medicare patients in 2024, average age 78
CMS counts 470 Medicare patients who saw Dr. Chastain in 2024. The largest group is 75 to 84, with 207 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chastain's median patient age at 74, with 54% women.
Dr. Chastain's Medicare patients by age, 2024
Dr. Chastain's Medicare patients by sex, 2024
- Women25153%
- Men21947%
Chronic conditions among Dr. Chastain's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes35%
- Chronic kidney disease34%
- Ischemic heart disease29%
- Anxiety24%
- Depression22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chastain'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
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Garvin Kent Chastain wrote 11,768 Medicare Part D claims in 2024
In 2024, Dr. Chastain wrote 11,768 Medicare Part D claims for 722 patients. 85% of them were for generic drugs. CMS names the drug for 11,029 of them, across 162 drugs with 11 or more claims each, at $1,064,229 in total drug cost. In 2023, CMS named 11,695 claims across 166 drugs.
Dr. Chastain's Part D claims by kind of drug, 2024
- Generic9,979 claims85%
- Brand-name1,683 claims14%
- Other106 claims1%
Dr. Chastain'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. Chastain's Part D claims, 2024
- Opioids2%244 of 11,768 claims
- Antibiotics2%291 of 11,768 claims
- Antipsychotics, patients 65 and over0%45 of 11,768 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: 11,6952024: 11,0296%
Drugs named by CMS: 162 in 2024, 166 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. Garvin Kent Chastain scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Chastain for performance year 2024, reported through an alternative payment model (APM). Dr. Chastain accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 270 procedures of removal of tissue by Dr. Chastain, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chastain's MIPS scores, performance year 2024
- 88of 100Final score
- 73.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chastain ranks in Medicare procedure volume
- Removal of tissue
- 94th percentile270 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Garvin Kent Chastain received $10,585 in industry payments from 2016 to 2025
CMS Open Payments shows 725 general payments to Dr. Chastain from 61 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $1,874.
General payments to Dr. Chastain by program year, 2016 to 2025
General payments to Dr. Chastain by kind, 2016 to 2025
- Food and beverage$10,553100%
- Education$310%
Companies that paid Dr. Chastain 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. Garvin Kent Chastain graduated from University of Tennessee, Hsc, College of Medicine
Dr. Chastain graduated from University of Tennessee, Hsc, College of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Garvin Kent Chastain'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)Clinician Public Reporting: Overall MIPS Performance (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. Garvin Kent Chastain
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. Garvin Kent Chastain's NPI number?
Dr. Garvin Kent Chastain's NPI number is 1518933829. It was assigned on February 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Garvin Kent Chastain?
Dr. Garvin Kent Chastain is an internist in Cleveland, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Garvin Kent Chastain practice?
Dr. Chastain practices at 1060 William NW Way, Cleveland, TN 37312. Dr. Chastain's primary practice is Cleveland Medical Associates in Cleveland, Tennessee. Dmand AI also links Dr. Chastain to 1 hospital, 4 home health agencies, 2 group practices and clinics and 2 medical groups.
What is Dr. Garvin Kent Chastain's office phone number?
The practice phone on file for Dr. Chastain is (423) 478-1050.
What is Dr. Garvin Kent Chastain's medical license number?
Dr. Chastain holds Tennessee license 16293.
Which hospitals is Dr. Garvin Kent Chastain affiliated with?
Dr. Chastain is affiliated with Bradley Medical Center. Dmand AI links Dr. Chastain to 1 more hospital.
What medical group is Dr. Garvin Kent Chastain part of?
Dr. Chastain is linked to Cleveland Medical Associates. Dmand AI links Dr. Chastain to 2 more medical groups.
Does Dr. Garvin Kent Chastain accept Medicare?
Yes. CMS data shows Dr. Chastain billed Medicare for 1,593 services in 2024, and Dr. Chastain accepts Medicare assignment.
What is Dr. Garvin Kent Chastain's MIPS score?
Dr. Chastain's MIPS final score for performance year 2024 is 88 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Garvin Kent Chastain see?
CMS counts 470 Medicare patients who saw Dr. Chastain in 2024, with an average age of 78.
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What services does Dr. Garvin Kent Chastain bill to Medicare?
In 2024, Dr. Chastain's most billed Medicare services were office visit, established patient (99214), surgery: skin and soft tissue (11042) and medicare service (G0446).
Where did Dr. Garvin Kent Chastain go to medical school?
Dr. Chastain graduated from University of Tennessee, Hsc, College of Medicine in 1982.
What drugs does Dr. Garvin Kent Chastain prescribe most?
In 2024 Medicare Part D data, Dr. Chastain's most prescribed drugs by claims were Levothyroxine Sodium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Garvin Kent Chastain received payments from drug or device companies?
CMS Open Payments shows $10,585 in general payments to Dr. Chastain from 61 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Garvin Kent Chastain been practicing?
Dr. Chastain graduated from medical school in 1982, 44 years ago.
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