Johnny Yi, MD
NPI 1821243635 · Obstetrics & Gynecology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnny Yi, MD is a Obstetrics & Gynecology Physician provider in Scottsdale, AZ (NPI 1821243635).
Provider details
- NPI number
- 1821243635
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0052346 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
523 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) |
|---|---|---|
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 81 | $11 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 73 | $160 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 73 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $88 |
| Non-Needle Measurement and Recording of Electrical Activity of Muscles at Bladder and Bowel Openings51784 | 44 | $31 |
| Complex Measurement of Pressure of Urine Flow in Bladder With Urethra Pressure and Voiding Pressure Studies |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 67 | 41 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 42 | 28 |
| Vibegronbrand: Gemtesa | 32 | 13 |
| Methenamine Hippurate | 30 | — |
| Trimethoprim | 24 | 11 |
| Mirabegronbrand: Myrbetriq | 21 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$90 across 2 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
Additional practice locations (2)
- 300 S Jackson StSuite 320Denver, CO 80209-3176Phone: (303) 316-6677Fax: (303) 316-5004
- 300 S Jackson StSuite 320Denver, CO 80209-3176Phone: (303) 316-6677Fax: (303) 316-5004
Registry dates
- Enumerated
- 2008-11-20
- Last updated
- 2020-09-08
- Certified
- 2020-09-08
Frequently asked questions
- What is Johnny Yi's NPI number?
- Johnny Yi's National Provider Identifier (NPI) is 1821243635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnny Yi's specialty?
- Johnny Yi is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Johnny Yi located?
- Johnny Yi's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259.
- What is Johnny Yi's phone number?
- The practice phone number listed in the NPPES registry for Johnny Yi is (480) 301-8000.
- Does Johnny Yi accept Medicare?
- Johnny Yi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnny Yi's NPI active?
- Yes — Johnny Yi's NPI (1821243635) is active in the NPPES registry as of the last update on 2020-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.