Nathan Hartgrove, DO
Internal Medicine Physician · Chattanooga, TN
Nathan Hartgrove, DO is an internal medicine physician with a practice address in Chattanooga, Tennessee, and NPI 1538420229, issued on May 30, 2012. Check the license (Tennessee 02879, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nathan Hartgrove
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 02879 TN
Self-reported in NPPES; status is on the state search - Practice location
- 961 Spring Creek RD Ste 300, Chattanooga, TN 37412
- Phone
- (423) 893-9787
- Enumerated
- May 30, 2012
- Record last updated
- Aug 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (423) 893-9037
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 961 Spring Creek RD Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Crystal Moon, PA-CMedical Physician Assistant1912304015
Verify Nathan Hartgrove in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 02879Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,913 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 178 claims were for opioids.
Most prescribed
- Levothyroxine Sodium94 claims
- Oxycodone-Acetaminophen85 claims
- Gabapentin79 claims
- Ozempic74 claims
- Bupropion Xl70 claims
- Sertraline Hcl65 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.
Industry payments in 2024: $23.48
1 payment: food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Nathan Hartgrove among 2,596 internal medicine physician records in Tennessee
Nathan Hartgrove, DO 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 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2018 · 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
- Antoinette Boameh, M.D.Chattanooga, TN 374121194157610
- Judith Boggess, M.D.East Ridge, TN 374121457315848
- Preston McDonald, M.D.Chattanooga, TN 374121326143140
- Paul Wentland, M.D.East Ridge, TN 374121841478625
- Saundra Williams, MDEast Ridge, TN 374121780627240
- Ihsaan Al-Amin, MDChattanooga, TN 374111205959970
- Sanat Bakshi, M.D.Chattanooga, TN 374111912089921
- Calvin Calhoun, M.D.Chattanooga, TN 374111093736837
Common questions
What is Nathan Hartgrove, DO's NPI number?
Nathan Hartgrove, DO's National Provider Identifier (NPI) is 1538420229, issued on May 30, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Hartgrove, DO located?
The NPPES record lists a practice address at 961 Spring Creek RD Ste 300, Chattanooga, TN, 37412. Phone: (423) 893-9787. Providers update this record themselves, so call before visiting.
How can I verify Nathan Hartgrove, DO's license?
NPPES lists Tennessee license number 02879, 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 Nathan Hartgrove, DO prescribe under Medicare Part D?
In 2024, Nathan Hartgrove, DO had 2,913 Medicare Part D claims for 111 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.