Preston Avery Sparks, M.D.
Internal Medicine Physician · Chattanooga, TN
Preston Avery Sparks, M.D. is an internal medicine physician with a practice address in Chattanooga, Tennessee, and NPI 1497286215, issued on Mar 23, 2017. Check the license (Tennessee 67883, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Preston Avery Sparks
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 67883 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2525 Desales Ave, Chattanooga, TN 37404
- Phone
- (423) 495-7404
- Enumerated
- Mar 23, 2017
- Record last updated
- Jun 27, 2023
- Fax
- (423) 495-2625
- Medicare enrollment
- Enrolled (PECOS I20230713000749); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 2525 Desales Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mark AllenAnesthesiology Physician1689251217
- Raymond Alonge, CRNACertified Registered Nurse Anesthetist1366517609
- Nyein Aung, DPTPhysical Therapist1104759943
- Karen Babb, PHARM.D.Pharmacist1548394687
Verify Preston Avery Sparks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 67883Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
272 Medicare Part D claims for 135 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 13 claims were for opioids.
Most prescribed
- Prednisone27 claims
- Amoxicillin-Clavulanate Potass16 claims
- Cefdinir14 claims
- Eliquis13 claims
- Amlodipine Besylate11 claims
- Furosemide11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Memorial Health Partners Foundation, IncChattanooga, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Preston Avery Sparks among 2,596 internal medicine physician records in Tennessee
Preston Avery Sparks, M.D. is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 84% of them.
- NPI issued2017 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2003 among the 1,705 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
192 internal medicine physician records list a practice address in Chattanooga
They are 192 of the 7,377 NPPES records with a practice address in Chattanooga, and 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Chattanooga → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Bosshardt, MDChattanooga, TN 374041932192994
- Collin Cherry, MDChattanooga, TN 374041659375491
- Charles Crump, MDChattanooga, TN 374041093704744
- Annesofie Dubeck-Brooks, MDChattanooga, TN 374041790774610
- Radian Florea, M.D.Chattanooga, TN 374041285627265
- Cristina Florea, MDChattanooga, TN 374041497730949
- Selmon Franklin, MDChattanooga, TN 374041841289501
- Richard Gusso, M.D.Chattanooga, TN 374041780673434
Common questions
What is Preston Avery Sparks, M.D.'s NPI number?
Preston Avery Sparks, M.D.'s National Provider Identifier (NPI) is 1497286215, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Preston Avery Sparks, M.D. located?
The NPPES record lists a practice address at 2525 Desales Ave, Chattanooga, TN, 37404. Phone: (423) 495-7404. Providers update this record themselves, so call before visiting.
How can I verify Preston Avery Sparks, M.D.'s license?
NPPES lists Tennessee license number 67883, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Preston Avery Sparks, M.D. prescribe under Medicare Part D?
In 2024, Preston Avery Sparks, M.D. had 272 Medicare Part D claims for 135 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Preston Avery Sparks, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.