Dr. Joseph Merriman, MD
- Medicare services, 2024
- 34,918
- Medicare patients, 2024
- 513
- Part D claims, 2024
- 662
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 605 Glenwood Dr, Chattanooga, TN 37404
- Practice phone
- Call (615) 329-0570
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tennessee Oncology
Chattanooga, Tennessee
Find Dr. Merriman'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. Joseph Merriman is a hematologist and oncologist in Chattanooga, Tennessee
Dr. Merriman practices at Tennessee Oncology in Chattanooga, Tennessee.
Dr. Merriman's NPI, 1669714226, was assigned on March 21, 2013. Dr. Merriman holds North Carolina license 2019-00651.
- NPI
- 1669714226NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022238161
- NPI enumeration date
- March 21, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 329-0570
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Merriman practices at Tennessee Oncology in Chattanooga, Tennessee
Dr. Merriman's primary practice is Tennessee Oncology, at 605 Glenwood Dr, Chattanooga, TN 37404 in Hamilton County. The practice phone is (615) 329-0570.
- Tennessee Oncology605 Glenwood Dr, Chattanooga, TN 37404 · Hamilton CountyPhone(615) 329-0570
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joseph Merriman is affiliated with 5 sites of care and 2 medical groups
Dr. Merriman's primary practice is Tennessee Oncology in Chattanooga, Tennessee. Dr. Merriman is also affiliated with Ascension Saint Thomas Hospital West. The medical group on file is Tennessee Oncology. Dmand AI also links Dr. Merriman to 1 more hospital, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group, 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. Joseph Merriman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merriman practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tennessee Oncology | 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. Joseph Merriman is one of 271 hematologists and oncologists in Tennessee
Hematology and oncology is Dr. Merriman's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Merriman's licenses on file in 2 states: North Carolina and Tennessee.
Specialties and state licenses
- Hematology and oncology, North CarolinaPrimary
- Internal medicine, Tennessee
Hematologists and oncologists near Dr. Merriman
Counts of hematologists and oncologists 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. Joseph Merriman billed Medicare for 34,918 services in 2024
CMS data shows 34,918 Medicare services from Dr. Merriman across 51 procedure codes in 2024, for 513 Medicare patients. Medicare paid $873,395 for them. Every service was in an office.
Dr. Merriman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 31,9592024: 30,2755%
- Lab and pathology
- 2023: 1,3292024: 2,28872%
- Tests and treatments
- 2023: 6172024: 94753%
- Surgery
- 2023: 3622024: 59765%
- Office and hospital visits
- 2023: 4332024: 51519%
- Other services
- 2023: 02024: 296
Dr. Merriman compared with the Tennessee median for hematologists and oncologists, 2024
- Dr. Merriman
- Tennessee median
- Medicare services
- 34,918vs 81842.7 times
- Medicare patients
- 513vs 28779% above
- Part D claims
- 476vs 5086% below
Medians across 259 hematologists and oncologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Merriman'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. Merriman and other hematologists and oncologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph Merriman treated 513 Medicare patients in 2024, average age 75
CMS counts 513 Medicare patients who saw Dr. Merriman in 2024. The largest group is 65 to 74, with 224 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.82, 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. Merriman's median patient age at 64, with 63% women.
Dr. Merriman's Medicare patients by age, 2024
Dr. Merriman's Medicare patients by sex, 2024
- Women32463%
- Men18937%
Chronic conditions among Dr. Merriman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Cancer42%
- Chronic kidney disease41%
- Diabetes35%
- Ischemic heart disease35%
- Anxiety32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Merriman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Merriman wrote 662 Medicare Part D claims in 2024
In 2024, Dr. Merriman wrote 662 Medicare Part D claims for 137 patients. 72% of them were for generic drugs. CMS names the drug for 476 of them, across 18 drugs with 11 or more claims each, at $810,993 in total drug cost. In 2023, CMS named 305 claims across 18 drugs.
Dr. Merriman's Part D claims by kind of drug, 2024
- Generic478 claims72%
- Brand-name184 claims28%
Dr. Merriman'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. Merriman's Part D claims, 2024
- Opioids6%39 of 662 claims
- Antibiotics2%11 of 662 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: 3052024: 47656%
Drugs named by CMS: 18 in 2024, 18 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. Joseph Merriman scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Merriman for performance year 2024, reported as part of a group. Dr. Merriman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Merriman's MIPS scores, performance year 2024
- 93of 100Final score
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Joseph Merriman received $50,526 in industry payments from 2016 to 2025
CMS Open Payments shows 191 general payments to Dr. Merriman from 37 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 70% of the total. AstraZeneca Pharmaceuticals LP paid the most, $21,496.
General payments to Dr. Merriman by program year, 2016 to 2025
General payments to Dr. Merriman by kind, 2016 to 2025
- Speaker and faculty fees$35,30070%
- Consulting fees$9,41919%
- Food and beverage$5,21910%
- Entertainment$2180%
- Other$3701%
Companies that paid Dr. Merriman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Joseph Merriman's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joseph Merriman
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. Joseph Merriman's NPI number?
Dr. Joseph Merriman's NPI number is 1669714226. It was assigned on March 21, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Merriman?
Dr. Joseph Merriman is a hematologist and oncologist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Joseph Merriman practice?
Dr. Merriman practices at 605 Glenwood Dr, Chattanooga, TN 37404. Dr. Merriman's primary practice is Tennessee Oncology in Chattanooga, Tennessee. Dmand AI also links Dr. Merriman to 1 hospital, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group.
What is Dr. Joseph Merriman's office phone number?
The practice phone on file for Dr. Merriman is (615) 329-0570.
What is Dr. Joseph Merriman's medical license number?
Dr. Merriman holds North Carolina license 2019-00651, one of the licenses on file in 2 states.
Which states has Dr. Joseph Merriman been licensed in?
Dmand AI has state licenses on file for Dr. Merriman in North Carolina and Tennessee.
Which hospitals is Dr. Joseph Merriman affiliated with?
Dr. Merriman is affiliated with Ascension Saint Thomas Hospital West. Dmand AI links Dr. Merriman to 1 more hospital.
What medical group is Dr. Joseph Merriman part of?
Dr. Merriman is linked to Tennessee Oncology. Dmand AI links Dr. Merriman to 1 more medical group.
Does Dr. Joseph Merriman accept Medicare?
Yes. CMS data shows Dr. Merriman billed Medicare for 34,918 services in 2024, and Dr. Merriman accepts Medicare assignment.
What is Dr. Joseph Merriman's MIPS score?
Dr. Merriman's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Joseph Merriman see?
CMS counts 513 Medicare patients who saw Dr. Merriman in 2024, with an average age of 75.
What services does Dr. Joseph Merriman bill to Medicare?
In 2024, Dr. Merriman's most billed Medicare services were injected or infused drug (J9271), injected or infused drug (J0881) and injected or infused drug (J9267).
What drugs does Dr. Joseph Merriman prescribe most?
In 2024 Medicare Part D data, Dr. Merriman's most prescribed drugs by claims were Eliquis, Lidocaine-Prilocaine and Ondansetron HCl.
Has Dr. Joseph Merriman received payments from drug or device companies?
CMS Open Payments shows $50,526 in general payments to Dr. Merriman from 37 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Joseph Merriman been practicing?
Dr. Merriman graduated from medical school in 2013, 13 years ago.
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