JONI GLAVAN SAGO M.D.
NPI 1932187200
Dermatology in Johnson City, TN

Q: What is Joni Sago's NPI number?

The NPI number for Joni Sago is 1932187200. It was assigned to this individual provider in the NPPES registry on January 5, 2006.

Q: What is Joni Sago's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for Joni Sago was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since January 05, 2006PECOS Enrolled

100/100

CMS Quality Rating

1627 OLD GRAY STATION RD STE 30, JOHNSON CITY, TN 37615(423) 528-8833(423) 546-7499 Get Directions Write a Review

NPPES record last updated: March 4, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 4, 2026, Feb 3, 2026, Dec 29, 2025 (3 updates tracked since 2025).

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About Joni Glavan Sago M.d. NPPES

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

JONI GLAVAN SAGO M.D. (NPI 1932187200) is an individual dermatology provider in Johnson City, Tennessee, licensed in Tennessee (MD0000037765) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (1997).

NPPES Registry Identity

NPI1932187200

Entity TypeIndividualFemale

Primary Taxonomy207N00000X

Provider Legal NameJONI GLAVAN SAGOCredential: M.D.

Location Address1627 OLD GRAY STATION RD STE 30Johnson City, TN 37615-4194

Mailing Address1627 Old Gray Station Rd Ste 30Johnson City, TN 37615-4194 · (423) 528-8833 · Fax (423) 546-7499

Phone(423) 528-8833

Fax(423) 546-7499

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 1997

Enumeration DateJanuary 5, 2006

Last NPPES UpdateMarch 4, 20263 updates tracked since enumeration

NPPES CertifiedMarch 4, 2026

✔ NPI 1932187200 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

License✔ Licensed in TN · MD0000037765

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

1627 OLD GRAY STATION RD STE 30, Johnson City, TN 37615

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joni Glavan Sago M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1052505336

PECOS Enrollment IDI20101101000207

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

Medicare enrollment records show Joni Sago reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Skinwise PLLC

Same address

Dermatology

1627 OLD GRAY STATION RD STE 30
Johnson City, TN 37615

Reassigned Medicare billing, Tennessee enrollment

NPI 1538025135 (423) 528-8833

Dermatology Associates, P.C.

12 mi

Dermatology

2300 W STONE DR
Kingsport, TN 37660

Reassigned Medicare billing, Tennessee enrollment
26 clinicians in this Medicare group

NPI 1487695862 (423) 246-4961

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 13

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 low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

518 services406 patients

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

463 services90 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

169 services127 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

161 services117 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

101 services83 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

80 services72 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

45 services41 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

32 services14 patients

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.

27 services21 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

22 services13 patients

Destruction of precancer skin growth, 15 or more growths 17004

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

16 services12 patients

Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm 17262

This procedure involves removing a cancerous skin growth on the trunk, arms, or legs that is between 1.1 and 2.0 cm in size. The growth is destroyed using methods like surgery, laser, or freezing, aiming to eliminate cancer and prevent its spread.

15 services14 patients

Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm 17261

This procedure involves the removal of a cancerous skin growth on the trunk, arms, or legs that is between 0.6 and 1.0 cm in size. The goal is to eliminate the cancerous cells and prevent further spread. The method of destruction may vary, including methods such as surgery, laser, or cryotherapy.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37615 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

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 2

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

DIANA KATHERINE RAMIREZ PA-C

Physician Assistant

1627 OLD GRAY STATION RD STE 30
JOHNSON CITY, TN 37615

Washington County (423) 528-8833

SKINWISE PLLC

Dermatology

1627 OLD GRAY STATION RD STE 30
JOHNSON CITY, TN 37615

Washington County (423) 528-8833

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 Joni Sago's NPI number?

The NPI number for Joni Sago is 1932187200. It was assigned to this individual provider in the NPPES registry on January 5, 2006.

Where is Joni Sago located?

Joni Sago practices at 1627 Old Gray Station Rd Ste 30, Johnson City, TN 37615. The listed phone number is (423) 528-8833.

What is Joni Sago's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Joni Sago enrolled in Medicare?

Yes. Joni Sago is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Joni Sago's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joni Sago reassigns Medicare benefits to 2 organizations: Skinwise PLLC (Johnson City, TN) and Dermatology Associates, P.C. (Kingsport, TN). 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 Joni Sago's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joni Sago was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.