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PATRICK CARL GRAYSON MD
NPI 1720029275
Emergency Medicine in Chattanooga, TN

Active since June 08, 2006PECOS Enrolled
1425 S MOORE RD STE E, CHATTANOOGA, TN 37412(865) 406-0802 Get Directions Write a Review

NPPES record last updated: May 22, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Patrick Carl Grayson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PATRICK CARL GRAYSON MD (NPI 1720029275) is an individual emergency medicine provider in Chattanooga, Tennessee, licensed in Tennessee (36478) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with East Carroll Parish Hospital, and is a graduate of East Tennessee State University Quillen College Of Medicine (1996).

NPPES Registry Identity

NPI1720029275
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NamePATRICK CARL GRAYSONCredential: MD
Location Address1425 S MOORE RD STE EChattanooga, TN 37412-2836
Mailing Address11 Waters Edge DrMonroe, LA 71203-8842 · (865) 406-0802
Phone(865) 406-0802
Sole ProprietorNo
Medical School CMSEast Tennessee State University Quillen College Of MedicineGraduated 1996
Enumeration DateJune 8, 2006
Last NPPES UpdateMay 22, 2025
NPPES CertifiedMay 22, 2025
✔ NPI 1720029275 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TN · 36478
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 36478 (TN), MD.13301R (LA)
1425 S MOORE RD STE E, Chattanooga, TN 37412
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Other Identifiers 5

Medicaid1561100LA
Medicaid010256682VA
OtherP00255392TN · Railroad Medicare
Medicaid3875615TN
Other4067317TN · Bcbs Of Tennessee

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMO Louisiana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Patrick Carl Grayson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3678518842
PECOS Enrollment IDI20070928000105
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

7

Medicare enrollment records show Patrick Grayson reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

East Carroll Parish Hospital
373 mi
Rural Health
326 N HOOD ST
Lake Providence, LA 71254
  • Reassigned Medicare billing, Louisiana enrollment
  • 78 clinicians in this Medicare group
NPI 1710966478 (318) 559-4024
Correct Care, Inc.
424 mi
Emergency Medicine
229 SAINT JOHN LN
Covington, LA 70433
  • Reassigned Medicare billing, Louisiana enrollment
  • 133 clinicians in this Medicare group
NPI 1215987441 (985) 773-1847
Ess Of Ferriday, LLC
433 mi
Emergency Medicine
6569 HIGHWAY 84
Ferriday, LA 71334
  • Reassigned Medicare billing, Louisiana enrollment
  • 33 clinicians in this Medicare group
NPI 1346900560 (866) 931-8882
Oakdale Ess LLC
518 mi
Emergency Medicine
130 HOSPITAL DR
Oakdale, LA 71463
  • Reassigned Medicare billing, Louisiana enrollment
  • 110 clinicians in this Medicare group
NPI 1750785119 (318) 335-3700
Emergency Staffing Solutions Inc
532 mi
Emergency Medicine
240 HIGHLAND DR
Many, LA 71449
  • Reassigned Medicare billing, Tennessee enrollment
  • 21 clinicians in this Medicare group
NPI 1477590974 (318) 256-5691
South Central Physicians PLLC
954 mi
Hospitalist
1602 AVENUE Q
Lubbock, TX 79401
  • Reassigned Medicare billing, Louisiana and Tennessee enrollments
  • 122 clinicians in this Medicare group
NPI 1427611854 (888) 264-0330
Concord Medical Group PLLC
955 mi
Emergency Medicine
1602 AVENUE Q
Lubbock, TX 79401
  • Reassigned Medicare billing, Louisiana and Tennessee enrollments
  • 214 clinicians in this Medicare group
NPI 1083630610 (888) 264-0330

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
63 services32 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
62 services48 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
39 services34 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
32 services31 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
30 services26 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

East Carroll Parish Hospital

Acute Care Hospitals · Lake Providence, LA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number190208
Location336 North Hood StreetLake Providence, LA 71254 · East Carroll County
Emergency services

Madison Parish Hospital

Critical Access Hospitals · Tallulah, LA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number191314
Location900 Johnson StreetTallulah, LA 71282 · Madison County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37412 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. KRISTA HARMS LMT
Massage Therapist
1425 S MOORE RD STE E
CHATTANOOGA, TN 37412
Hamilton County (423) 475-5305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Patrick Grayson's NPI number?

The NPI number for Patrick Grayson is 1720029275. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is Patrick Grayson located?

Patrick Grayson practices at 1425 S Moore Rd Ste E, Chattanooga, TN 37412. The listed phone number is (865) 406-0802.

What is Patrick Grayson's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Patrick Grayson enrolled in Medicare?

Yes. Patrick Grayson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Patrick Grayson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Grayson reassigns Medicare benefits to 7 organizations: East Carroll Parish Hospital (Lake Providence, LA), Correct Care, Inc. (Covington, LA), Ess Of Ferriday, LLC (Ferriday, LA), Oakdale Ess LLC (Oakdale, LA), Emergency Staffing Solutions Inc (Many, LA) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Patrick Grayson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Patrick Grayson accept?

Health plans from HMO Louisiana list Patrick Grayson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Patrick Grayson affiliated with any hospitals?

According to CMS data, Patrick Grayson is affiliated with East Carroll Parish Hospital and Madison Parish Hospital.

When was this NPI record last updated?

The NPPES record for Patrick Grayson was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.