Dr. Christopher Michael Sizemore, DO
- Medicare services, 2021
- 14
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 21
- Industry payments
- $12,509
- Affiliated sites
- 1
- Practice address
- 2292 Dalton Dr, Clarksville, TN 37043
- Practice phone
- Call (629) 206-6858
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Diana Health TN
Clarksville, Tennessee
Find Dr. Sizemore's professional email, personal email and mobile number
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Dr. Christopher Michael Sizemore is an OB-GYN in Clarksville, Tennessee
Dr. Sizemore practices at Diana Health TN in Clarksville, Tennessee.
Dr. Sizemore's NPI, 1891842688, was assigned on January 4, 2007. Dr. Sizemore holds Tennessee license 2019.
- NPI
- 1891842688NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577616812
- NPI enumeration date
- January 4, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (629) 206-6858
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Michael Sizemore practices at Diana Health TN in Clarksville, Tennessee
Dr. Sizemore's primary practice is Diana Health TN, at 2292 Dalton Dr, Clarksville, TN 37043 in Montgomery County. The practice phone is (629) 206-6858.
- Diana Health TN2292 Dalton Dr, Clarksville, TN 37043 · Montgomery CountyPhone(629) 206-6858
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher Michael Sizemore is affiliated with 2 sites of care and 1 medical group
Dr. Sizemore's primary practice is Diana Health TN in Clarksville, Tennessee. The medical group on file is Diana Health. Dmand AI also links Dr. Sizemore to 1 more group practice or clinic, 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. Christopher Michael Sizemore's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sizemore practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Diana Health TN | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Michael Sizemore is one of 765 OB-GYNs in Tennessee
Obstetrics and gynecology is Dr. Sizemore's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Sizemore is licensed in Tennessee.
Specialties and state licenses
- Obstetrics and gynecology, TennesseePrimary
OB-GYNs near Dr. Sizemore
Counts of OB-GYNs 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. Christopher Michael Sizemore billed Medicare for 14 services in 2021
CMS data shows 14 Medicare services from Dr. Sizemore across 1 procedure code in 2021, all of them office visits, for 11 Medicare patients. Medicare paid $837 for them. Every service was in an office.
Dr. Sizemore's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 02021: 14
- Other services
- 2020: 162021: 0100%
Dr. Sizemore compared with the Tennessee median for OB-GYNs, 2021
- Dr. Sizemore
- Tennessee median
- Medicare services
- 14vs 6879% below
- Medicare patients
- 11vs 4978% below
- Part D claims
- 20vs 4657% below
Medians across 694 OB-GYNs in Tennessee with Dmand AI profiles that report each measure.
Dr. Sizemore's most billed Medicare procedure codes, 2021
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. Sizemore and other OB-GYNs in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Michael Sizemore treated 11 Medicare patients in 2024, average age 69
CMS counts 11 Medicare patients who saw Dr. Sizemore in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 0.72, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sizemore's median patient age at 35, with 100% women.
Dr. Sizemore's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sizemore's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Michael Sizemore wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Sizemore wrote 21 Medicare Part D claims. 76% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $2,047 in total drug cost.
Dr. Sizemore's Part D claims by kind of drug, 2024
- Generic16 claims76%
- Brand-name and other5 claims24%
Dr. Sizemore's most prescribed drugs by claims, 2022
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
How Dr. Christopher Michael Sizemore takes part in Medicare
Dr. Sizemore 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. Christopher Michael Sizemore received $12,509 in industry payments from 2022 to 2025
CMS Open Payments shows 39 general payments to Dr. Sizemore from 16 drug and device companies from 2022 to 2025. Education make up the largest share, 84% of the total. Intuitive Surgical, Inc. paid the most, $11,824.
General payments to Dr. Sizemore by program year, 2022 to 2025
General payments to Dr. Sizemore by kind, 2022 to 2025
- Education$10,50084%
- Travel and lodging$1,28910%
- Food and beverage$7196%
Companies that paid Dr. Sizemore the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Christopher Michael Sizemore'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Christopher Michael Sizemore
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. Christopher Michael Sizemore's NPI number?
Dr. Christopher Michael Sizemore's NPI number is 1891842688. It was assigned on January 4, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Michael Sizemore?
Dr. Christopher Michael Sizemore is an OB-GYN in Clarksville, Tennessee. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Christopher Michael Sizemore practice?
Dr. Sizemore practices at 2292 Dalton Dr, Clarksville, TN 37043. Dr. Sizemore's primary practice is Diana Health TN in Clarksville, Tennessee. Dmand AI also links Dr. Sizemore to 1 group practice or clinic.
What is Dr. Christopher Michael Sizemore's office phone number?
The practice phone on file for Dr. Sizemore is (629) 206-6858.
What is Dr. Christopher Michael Sizemore's medical license number?
Dr. Sizemore holds Tennessee license 2019.
What medical group is Dr. Christopher Michael Sizemore part of?
Dr. Sizemore is linked to Diana Health.
Does Dr. Christopher Michael Sizemore accept Medicare?
Yes. CMS data shows Dr. Sizemore billed Medicare for 14 services in 2021, and Dr. Sizemore accepts Medicare assignment.
How many Medicare patients does Dr. Christopher Michael Sizemore see?
CMS counts 11 Medicare patients who saw Dr. Sizemore in 2024, with an average age of 69.
What services does Dr. Christopher Michael Sizemore bill to Medicare?
In 2021, Dr. Sizemore's most billed Medicare services were office visit, established patient (99213).
What drugs does Dr. Christopher Michael Sizemore prescribe most?
In 2022 Medicare Part D data, Dr. Sizemore's most prescribed drugs by claims were Estradiol.
Has Dr. Christopher Michael Sizemore received payments from drug or device companies?
CMS Open Payments shows $12,509 in general payments to Dr. Sizemore from 16 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Christopher Michael Sizemore been practicing?
Dr. Sizemore graduated from medical school in 2005, 21 years ago.
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