Chan Park, M.D.
NPI 1255336665 · Family Medicine Physician · Shafter, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chan Park, M.D. is a Family Medicine Physician provider in Shafter, CA (NPI 1255336665).
Provider details
- NPI number
- 1255336665
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A068509 (CA)
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
21 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
1,110 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) |
|---|---|---|
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 216 | $16 |
| Urinalysis, Manual Test81002 | 198 | $3 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 194 | $81 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 149 | $30 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 116 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 56 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 153 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 913 | 242 |
| Metformin Hcl | 585 | 158 |
| Amlodipine Besylate | 521 | 130 |
| Gabapentin | 441 | 123 |
| Lisinopril | 428 | 119 |
| Losartan Potassium | 416 | 119 |
| Hydrochlorothiazide | 354 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$608 across 37 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
- 2005-06-14
- Last updated
- 2026-05-01
- Certified
- 2026-05-01
Frequently asked questions
- What is Chan Park's NPI number?
- Chan Park's National Provider Identifier (NPI) is 1255336665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chan Park's specialty?
- Chan Park is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chan Park located?
- Chan Park's practice location on file with NPPES is 565 Kern St, Shafter, CA 93263-2133.
- What is Chan Park's phone number?
- The practice phone number listed in the NPPES registry for Chan Park is (661) 746-4937.
- Does Chan Park accept Medicare?
- Chan Park is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chan Park's NPI active?
- Yes — Chan Park's NPI (1255336665) is active in the NPPES registry as of the last update on 2026-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.