John Yap, MD
NPI 1164404356 · Orthopaedic Surgery Physician · Lapeer, MI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Yap, MD is a Orthopaedic Surgery Physician provider in Lapeer, MI (NPI 1164404356).
Provider details
- NPI number
- 1164404356
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301059287 (MI)
Specialties & taxonomies
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
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
837 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 155 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 138 | $121 |
| X-Ray of Knee, 3 Views73562 | 126 | $42 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 95 | $85 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 81 | $34 |
| X-Ray of Hip, 2-3 Views73502 | 62 | $43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 460 | 223 |
| Gabapentin | 248 | 156 |
| Cephalexin | 188 | 158 |
| Mupirocin | 159 | 150 |
| Cyclobenzaprine Hcl | 144 | 101 |
| Tramadol Hcl | 69 | 34 |
| Amoxicillin | 62 | 53 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
- 2005-11-15
- Last updated
- 2013-09-19
Frequently asked questions
- What is John Yap's NPI number?
- John Yap's National Provider Identifier (NPI) is 1164404356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Yap's specialty?
- John Yap is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Yap located?
- John Yap's practice location on file with NPPES is 307 S Court St, Lapeer, MI 48446-2514.
- What is John Yap's phone number?
- The practice phone number listed in the NPPES registry for John Yap is (810) 667-6110.
- Does John Yap accept Medicare?
- John Yap is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Yap's NPI active?
- Yes — John Yap's NPI (1164404356) is active in the NPPES registry as of the last update on 2013-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.