NPPES file of Aug 9, 2026

Gary Duane Singer, D.O.

Emergency Medicine Physician · Nashville, TN

Gary Duane Singer, D.O. is an emergency medicine physician with a practice address in Nashville, Tennessee, and NPI 1275573974, issued on Jun 8, 2006. Check the license (Tennessee 01220, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275573974
Name
Gary Duane Singer
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
01220 TN
Self-reported in NPPES; status is on the state search
Practice location
2300 Patterson St, Nashville, TN 37203
Phone
(615) 342-1000
Enumerated
Jun 8, 2006
Record last updated
Nov 7, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid IDs
206275307 MO
3305053 TN
3305054 TN
64868375 KY
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2300 Patterson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nicholas Alexander, MDStudent in an Organized Health Care Education/Training Program1639871221
  2. Meghan Allen, RNRegistered Nurse1023805397
  3. Oguz Aras, MDStudent in an Organized Health Care Education/Training Program1336909498
  4. Shanze Arshad, MDStudent in an Organized Health Care Education/Training Program1629879879
  5. Katherine AwhStudent in an Organized Health Care Education/Training Program1821857079
  6. Nader Bahri, M.D.Internal Medicine Physician1588899082

Verify Gary Duane Singer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 01220
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

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53% more Medicare Part D claims than the average emergency medicine physician in 2024

346 Medicare Part D claims for 200 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 30 claims were for opioids.

  1. Gary Singer346
  2. Specialty average226

Most prescribed

  1. Cephalexin38 claims
  2. Prednisone38 claims
  3. Dicyclomine Hcl20 claims
  4. Hydrocodone-Acetaminophen20 claims
  5. Doxycycline Hyclate18 claims
  6. Amoxicillin16 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.

Gary Duane Singer among 1,174 emergency medicine physician records in Tennessee

Gary Duane Singer, D.O. is one of 1,174 emergency medicine physician records with a practice address in Tennessee. 83% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

294 emergency medicine physician records list a practice address in Nashville

They are 294 of the 24,357 NPPES records with a practice address in Nashville, and 1,174 emergency medicine physician records in Tennessee.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Mark Byram, M.D.Nashville, TN 372031124065362
  2. Terry Cain, M.D.Nashville, TN 372031750322343
  3. James Cusser, M.D.Nashville, TN 372031912135047
  4. David Degenhardt, DONashville, TN 372031225065824
  5. Benjamin Dehaven, M.D.Nashville, TN 372031497928824
  6. James Fiechtl, MDNashville, TN 372031164519294
  7. Keith Habeeb, D.ONashville, TN 372031063774537
  8. Michael Hasty, MDNashville, TN 372031265476790

Common questions

What is Gary Duane Singer, D.O.'s NPI number?

Gary Duane Singer, D.O.'s National Provider Identifier (NPI) is 1275573974, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gary Duane Singer, D.O. located?

The NPPES record lists a practice address at 2300 Patterson St, Nashville, TN, 37203. Phone: (615) 342-1000. Providers update this record themselves, so call before visiting.

How can I verify Gary Duane Singer, D.O.'s license?

NPPES lists Tennessee license number 01220, 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 Gary Duane Singer, D.O. prescribe under Medicare Part D?

In 2024, Gary Duane Singer, D.O. had 346 Medicare Part D claims for 200 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.