Patrick Carl Grayson, MD
Emergency Medicine Physician · Chattanooga, TN
Patrick Carl Grayson, MD is an emergency medicine physician with a practice address in Chattanooga, Tennessee, and NPI 1720029275, issued on Jun 8, 2006. Check the license (Tennessee 36478, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Patrick Carl Grayson
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 36478 TN
MD.13301R LA
Self-reported in NPPES; status is on the state search - Practice location
- 1425 S Moore RD Ste E, Chattanooga, TN 37412
- Phone
- (865) 406-0802
- Enumerated
- Jun 8, 2006
- Record last updated
- May 22, 2025
- Medicaid IDs
- 1561100 LA
010256682 VA
3875615 TN - Medicare enrollment
- Enrolled (PECOS I20070928000105); may accept Medicare assignment
- Medical or professional school
- East Tennessee State University Quillen College Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,174 in Tennessee → Look up another NPI →
Also registered at 1425 S Moore RD Ste E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Krista Harms, LMTMassage Therapist1811659675
Verify Patrick Carl Grayson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 36478Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average emergency medicine physician in 2024
589 Medicare Part D claims for 176 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 114 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen59 claims
- Tramadol Hcl41 claims
- Butalbital-Acetaminophen-Caffe25 claims
- Azithromycin24 claims
- Cyclobenzaprine Hcl21 claims
- Zolpidem Tartrate20 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.
2 hospitals and group practices
- East Carroll Parish HospitalLake Providence, LA · Acute Care Hospitals
- Oakdale Ess LLCTallulah, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Patrick Carl Grayson among 1,174 emergency medicine physician records in Tennessee
Patrick Carl Grayson, MD 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 fileYes · 57% of these records are
- Graduated1996 · median 2012 among the 667 with a school on file
- Record last updated2025 · 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).
112 emergency medicine physician records list a practice address in Chattanooga
They are 112 of the 7,377 NPPES records with a practice address in Chattanooga, and 1,174 emergency medicine physician records in Tennessee.
All 1,174 in Tennessee → Every provider in Chattanooga → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ronald Gracy, M.D.Chattanooga, TN 374121003848722
- Kenneth Hayman, M.D.Chattanooga, TN 374121548299829
- Alexander Sikes, MDChattanooga, TN 374121255755575
- Frank Calhoun, MDChattanooga, TN 374151326012683
- Morgan MayfieldRed Bank, TN 374151922628882
- Ben Cottrell, MDChattanooga, TN 374191801842570
- John McGauley, M.D.Chattanooga, TN 374191831321553
- Sara Demian, MDChattanooga, TN 374041528647013
Common questions
What is Patrick Carl Grayson, MD's NPI number?
Patrick Carl Grayson, MD's National Provider Identifier (NPI) is 1720029275, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Carl Grayson, MD located?
The NPPES record lists a practice address at 1425 S Moore RD Ste E, Chattanooga, TN, 37412. Phone: (865) 406-0802. Providers update this record themselves, so call before visiting.
How can I verify Patrick Carl Grayson, MD's license?
NPPES lists Tennessee license number 36478, 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 Patrick Carl Grayson, MD prescribe under Medicare Part D?
In 2024, Patrick Carl Grayson, MD had 589 Medicare Part D claims for 176 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.