Michael Chang, M.D.
NPI 1588640361 · Orthopaedic Surgery of the Spine Physician · Yakima, WA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Chang, M.D. is a Orthopaedic Surgery of the Spine Physician provider in Yakima, WA (NPI 1588640361).
Provider details
- NPI number
- 1588640361
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery of the Spine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0432322 (KS)
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
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
832 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 256 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 150 | $89 |
| X-Ray of Lower and Sacral Spine, Minimum of 4 Views72110 | 122 | $52 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 48 | $167 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 42 | $176 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Baclofen | 217 | 152 |
| Methocarbamol | 197 | 106 |
| Oxycodone Hcl | 126 | 71 |
| Gabapentin | 79 | 35 |
| Ondansetronbrand: Ondansetron Odt | 73 | 70 |
| Methylprednisolone | 64 | 62 |
| Cyclobenzaprine Hcl | 12 | — |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,956 across 6 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
- 2005-12-22
- Last updated
- 2023-01-26
- Certified
- 2023-01-26
Frequently asked questions
- What is Michael Chang's NPI number?
- Michael Chang's National Provider Identifier (NPI) is 1588640361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Chang's specialty?
- Michael Chang is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery of the Spine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Chang located?
- Michael Chang's practice location on file with NPPES is 111 S 11th Ave Ste 320, Yakima, WA 98902-3273.
- What is Michael Chang's phone number?
- The practice phone number listed in the NPPES registry for Michael Chang is (509) 454-8888.
- Does Michael Chang accept Medicare?
- Michael Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Chang's NPI active?
- Yes — Michael Chang's NPI (1588640361) is active in the NPPES registry as of the last update on 2023-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.