Joni Sago, M.D.
NPI 1932187200 · Dermatology Physician · Johnson City, TN
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joni Sago, M.D. is a Dermatology Physician provider in Johnson City, TN (NPI 1932187200).
Provider details
- NPI number
- 1932187200
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD0000037765 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,630 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 518 | $87 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 463 | $6 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 169 | $55 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 161 | $33 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 101 | $54 |
| Biopsy of Related Skin Growth, First Growth11102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Minoxidil | 104 | 26 |
| Clobetasol Propionate | 101 | 71 |
| Fluorouracil | 78 | 61 |
| Hydroxychloroquine Sulfate | 57 | — |
| Dutasteride | 56 | 11 |
| Triamcinolone Acetonide | 54 | 42 |
| Spironolactone | 51 | 15 |
| Valacyclovir Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$121,212 across 129 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-05
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is Joni Sago's NPI number?
- Joni Sago's National Provider Identifier (NPI) is 1932187200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joni Sago's specialty?
- Joni Sago is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Joni Sago located?
- Joni Sago's practice location on file with NPPES is 1627 Old Gray Station Rd Ste 30, Johnson City, TN 37615-4194.
- What is Joni Sago's phone number?
- The practice phone number listed in the NPPES registry for Joni Sago is (423) 528-8833.
- Does Joni Sago accept Medicare?
- Joni Sago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joni Sago's NPI active?
- Yes — Joni Sago's NPI (1932187200) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.