Kok Chye Tan, MD
NPI 1891974283 · Neuroradiology Physician · Monterey Park, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kok Chye Tan, MD is a Neuroradiology Physician provider in Monterey Park, CA (NPI 1891974283).
Provider details
- NPI number
- 1891974283
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A120081 (CA)
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 tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
27,275 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 14,984 | $9 |
| X-Ray of Abdomen, 1 View74018 | 2,622 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 1,943 | $41 |
| Ct Scan of Chest Without Contrast71250 | 522 | $53 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 352 | $34 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 335 | $86 |
| Ct Scan of Upper Spine Without Contrast |
Practice location
Mailing address
Additional practice locations (1)
- 223 N Garfield Ave Ste 201Monterey Park, CA 91754-1700Phone: (626) 228-3210Fax: (866) 277-0944
Registry dates
- Enumerated
- 2007-11-01
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Kok Chye Tan's NPI number?
- Kok Chye Tan's National Provider Identifier (NPI) is 1891974283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kok Chye Tan's specialty?
- Kok Chye Tan is listed in the NPPES registry with a primary specialty of Neuroradiology Physician (Allopathic & Osteopathic Physicians).
- Where is Kok Chye Tan located?
- Kok Chye Tan's practice location on file with NPPES is 525 N Garfield Ave, Monterey Park, CA 91754-1202.
- What is Kok Chye Tan's phone number?
- The practice phone number listed in the NPPES registry for Kok Chye Tan is (626) 522-6030.
- Does Kok Chye Tan accept Medicare?
- Kok Chye Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kok Chye Tan's NPI active?
- Yes — Kok Chye Tan's NPI (1891974283) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.