1. Home
  2. Directory
  3. Tennessee
  4. Johnson City
  5. Internal Medicine
  6. NPI Profile

DR. JORGE MANUEL DIAZ MD
NPI 1295222719
Internal Medicine - Critical Care Medicine in Johnson City, TN

Active since April 19, 2018PECOS EnrolledAccepts Medicare Assignment
310 N STATE OF FRANKLIN RD STE 303, JOHNSON CITY, TN 37604(423) 926-8181(423) 926-4421 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 26, 2026, Feb 17, 2025, Sep 12, 2024 and 2 more (5 updates tracked since 2018).

About Dr. Jorge Manuel Diaz Md NPPES

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

DR. JORGE MANUEL DIAZ MD (NPI 1295222719) is an individual critical care medicine provider in Johnson City, Tennessee, licensed in Tennessee (65933) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Wellmont Holston Valley Medical Center, and maintains a secondary practice location in Johnson City.

NPPES Registry Identity

NPI1295222719
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDR. JORGE MANUEL DIAZCredential: MD
Location Address310 N STATE OF FRANKLIN RD STE 303Johnson City, TN 37604-6051
Mailing Address1021 W Oakland Ave Ste 310Johnson City, TN 37604-2192 · (423) 952-2111
Phone(423) 926-8181
Fax(423) 926-4421
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateApril 19, 2018
Last NPPES UpdateJune 29, 20265 updates tracked since enumeration
NPPES CertifiedJune 29, 2026
✔ NPI 1295222719 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in TN · 65933
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal MedicineTaxonomy 207R00000X · License 65933 (TN)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 65933 (TN)
310 N STATE OF FRANKLIN RD STE 303, Johnson City, TN 37604
Open in Google Maps ↗

Secondary Practice Location 1

Location 1400 N State of Franklin Rd Rm 2746Johnson City, TN 37604-6035 · Phone (423) 431-2727 · Fax (423) 431-2814

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jorge Manuel Diaz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092199018
PECOS Enrollment IDI20220825000176
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

8

Medicare enrollment records show Jorge Diaz reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Blue Ridge Medical Management
Same address
Vascular Surgery
310 N STATE OF FRANKLIN RD, SUITE 101B
Johnson City, TN 37604
  • Reassigned Medicare billing, Tennessee enrollment
  • 496 clinicians in this Medicare group
NPI 1114340445 (423) 929-7393
Wellmont Medical Associates, Inc.
2.2 mi
Internal Medicine
161 HEART DR STE A
Johnson City, TN 37604
  • Reassigned Medicare billing, Tennessee enrollment
  • 861 clinicians in this Medicare group
NPI 1154789030 (423) 282-0751
State Of Franklin Healthcare Associates PLLC
5.8 mi
Internal Medicine
121 BOONE RIDGE DR STE 1002
Johnson City, TN 37615
  • Reassigned Medicare billing, Tennessee enrollment
  • 357 clinicians in this Medicare group
NPI 1063459410 (423) 794-5500
App Of Tennessee Ed, PLLC
96 mi
Emergency Medicine
907 E LAMAR ALEXANDER PKWY
Maryville, TN 37804
  • Reassigned Medicare billing, Tennessee enrollment
  • 390 clinicians in this Medicare group
NPI 1003230236 (865) 983-7211
Southeastern Physician Services PC
106 mi
Hospitalist
990 OAK RIDGE TPKE
Oak Ridge, TN 37830
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,085 clinicians in this Medicare group
NPI 1083835441 (865) 481-1000
Cookeville Hospitalist Group, PLLC
175 mi
Hospitalist
1 MEDICAL CENTER BLVD
Cookeville, TN 38501
  • Reassigned Medicare billing, Tennessee enrollment
  • 107 clinicians in this Medicare group
NPI 1467133371 (931) 528-2541
Southeastern Emergency Physicians LLC
179 mi
Emergency Medicine
989 MEDICAL PARK DR
Maysville, KY 41056
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,071 clinicians in this Medicare group
NPI 1356379382 (606) 759-5311
App Of Tennessee Hm, PLLC
234 mi
Hospitalist
2835 HIGHWAY 231 N
Shelbyville, TN 37160
  • Reassigned Medicare billing, Tennessee enrollment
  • 498 clinicians in this Medicare group
NPI 1396160768 (931) 685-5433

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 10

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
71 services65 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
61 services25 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
40 services40 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
38 services18 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
28 services28 patients
Test to examine how well the lungs exchange gases 94729
This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
26 services26 patients

Hospital Affiliations CMS Care Compare 5

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

Wellmont Holston Valley Medical Center

Acute Care Hospitals · Kingsport, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440017
Location130 West Ravine RoadKingsport, TN 37662 · Sullivan County
Emergency services

Sycamore Shoals Hospital

Acute Care Hospitals · Elizabethton, TN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440018
Location1501 West Elk AvenueElizabethton, TN 37643 · Carter County
Emergency services

Greeneville Community Hospital

Acute Care Hospitals · Greeneville, TN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440050
Location1420 Tusculum BoulevardGreeneville, TN 37745 · Greene County
Emergency services Birthing friendly

Johnson City Medical Center

Acute Care Hospitals · Johnson City, TN
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440063
Location400 N State Of Franklin RdJohnson City, TN 37604 · Washington County
Emergency services Birthing friendly

Franklin Woods Community Hospital

Acute Care Hospitals · Johnson City, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440184
Location300 Med Tech ParkwayJohnson City, TN 37604 · Washington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37604 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
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 5

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

NATALIE BATESON PA
Physician Assistant
310 N STATE OF FRANKLIN RD STE 303
JOHNSON CITY, TN 37604
Washington County (423) 926-8181
CELSO T EBEO M.D.
Internal Medicine (Critical Care Medicine)
310 N STATE OF FRANKLIN RD STE 303
JOHNSON CITY, TN 37604
Washington County (423) 926-8181
MARIA CARMINA CASTILLO GARCIA M.D.
Internal Medicine (Pulmonary Disease)
310 N STATE OF FRANKLIN RD STE 303
JOHNSON CITY, TN 37604
Washington County (423) 926-8181
DR. AMANDA KAY VANLANDINGHAM D.O.
Internal Medicine (Pulmonary Disease)
310 N STATE OF FRANKLIN RD STE 303
JOHNSON CITY, TN 37604
Washington County (423) 926-8181
MR. DAVID ANDREW KNECHTEL PA
Physician Assistant
310 N STATE OF FRANKLIN RD STE 303
JOHNSON CITY, TN 37604
Washington County (423) 926-8181

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 Jorge Diaz's NPI number?

The NPI number for Jorge Diaz is 1295222719. It was assigned to this individual provider in the NPPES registry on April 19, 2018.

Where is Jorge Diaz located?

Jorge Diaz practices at 310 N State Of Franklin Rd Ste 303, Johnson City, TN 37604. The listed phone number is (423) 926-8181.

What is Jorge Diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Jorge Diaz enrolled in Medicare?

Yes. Jorge Diaz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Jorge Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jorge Diaz reassigns Medicare benefits to 8 organizations: Blue Ridge Medical Management (Johnson City, TN), Wellmont Medical Associates, Inc. (Johnson City, TN), State Of Franklin Healthcare Associates PLLC (Johnson City, TN), App Of Tennessee Ed, PLLC (Maryville, TN), Southeastern Physician Services PC (Oak Ridge, TN) and 3 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 Jorge Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jorge Diaz accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Jorge Diaz 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 Jorge Diaz affiliated with any hospitals?

According to CMS data, Jorge Diaz is affiliated with Wellmont Holston Valley Medical Center, Sycamore Shoals Hospital, Greeneville Community Hospital, Johnson City Medical Center and Franklin Woods Community Hospital.

When was this NPI record last updated?

The NPPES record for Jorge Diaz was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.