Jun Min Koay, PSY.D.
NPI 1639755796 · Psychologist · Rochester, MN
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jun Min Koay, PSY.D. is a Psychologist provider in Rochester, MN (NPI 1639755796).
Provider details
- NPI number
- 1639755796
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
515 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139 | 262 | $35 |
| Exam of Neurobehavioral Status, First Hour96116 | 64 | $87 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 64 | $93 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 63 | $34 |
| Evaluation of Neuropsychological Test, First Hour96132 | 62 | $123 |
Typical Medicare-allowed amounts for these services range $34–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 4500 San Pablo Rd SJacksonville, FL 32224-1865Phone: (904) 953-2000
Registry dates
- Enumerated
- 2021-03-19
- Last updated
- 2023-07-26
- Certified
- 2023-07-26
Frequently asked questions
- What is Jun Min Koay's NPI number?
- Jun Min Koay's National Provider Identifier (NPI) is 1639755796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jun Min Koay's specialty?
- Jun Min Koay is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Jun Min Koay located?
- Jun Min Koay's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Jun Min Koay's phone number?
- The practice phone number listed in the NPPES registry for Jun Min Koay is (507) 284-2511.
- Does Jun Min Koay accept Medicare?
- Jun Min Koay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jun Min Koay's NPI active?
- Yes — Jun Min Koay's NPI (1639755796) is active in the NPPES registry as of the last update on 2023-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.