Don D. Duff, FNP-C
Nurse Practitioner · Chattanooga, TN
Don D. Duff, FNP-C is a nurse practitioner with a practice address in Chattanooga, Tennessee, and NPI 1588606636, issued on Jun 12, 2006. Check the license (Tennessee 20159, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Don D. Duff
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 20159 TN
DC0000000723 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1736 Gunbarrel RD, Chattanooga, TN 37421
- Phone
- (423) 756-6623
- Enumerated
- Jun 12, 2006
- Record last updated
- Jan 19, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (423) 648-8084
- Medicare enrollment
- Enrolled (PECOS I20160504000455); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 2,303 in Tennessee → Look up another NPI →
Also registered at 1736 Gunbarrel RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Don D. Duff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 20159Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average nurse practitioner in 2024
490 Medicare Part D claims for 234 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 64 claims were for opioids.
Most prescribed
- Meloxicam164 claims
- Diazepam45 claims
- Methocarbamol45 claims
- Gabapentin42 claims
- Methylprednisolone35 claims
- Triazolam29 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: $34.24
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 38,884 providers of this specialty with any payment received $791.64 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.
Bills Medicare through one group practice
- Erlanger HealthChattanooga, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Don D. Duff among 2,303 nurse practitioner records in Tennessee
Don D. Duff, FNP-C is one of 2,303 nurse practitioner records with a practice address in Tennessee. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 79% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2015 · median 2017 among the 1,331 with a school on file
- Record last updated2017 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
176 nurse practitioner records list a practice address in Chattanooga
They are 176 of the 7,377 NPPES records with a practice address in Chattanooga, and 2,303 nurse practitioner records in Tennessee.
All 2,303 in Tennessee → Every provider in Chattanooga → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
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- Deborah Gray, APNChattanooga, TN 374211629012331
- Honor Hightshue, FNPChattanooga, TN 374211578765772
- Christie Hinds, APRN-BCChattanooga, TN 374211659456093
- Autumn Holmes, MSN, NP-CChattanooga, TN 374211518123058
- Judy Kitson, FNP- BCChattanooga, TN 374211932392248
Common questions
What is Don D. Duff, FNP-C's NPI number?
Don D. Duff, FNP-C's National Provider Identifier (NPI) is 1588606636, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Don D. Duff, FNP-C located?
The NPPES record lists a practice address at 1736 Gunbarrel RD, Chattanooga, TN, 37421. Phone: (423) 756-6623. Providers update this record themselves, so call before visiting.
How can I verify Don D. Duff, FNP-C's license?
NPPES lists Tennessee license number 20159, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Don D. Duff, FNP-C prescribe under Medicare Part D?
In 2024, Don D. Duff, FNP-C had 490 Medicare Part D claims for 234 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.