John Yang, M.D.
NPI 1013949551 · Hematology & Oncology Physician · Newton, MA
Enrolled with Medicare as Practitioner - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Yang, M.D. is a Hematology & Oncology Physician provider in Newton, MA (NPI 1013949551).
Provider details
- NPI number
- 1013949551
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 219306 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,525 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 295 | $139 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 277 | $17 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 210 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 151 | $194 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prochlorperazine Maleate | 58 | 36 |
| Ondansetron Hcl | 45 | 36 |
| Apixabanbrand: Eliquis | 31 | — |
| Oxycodone Hcl | 26 | 14 |
| Omeprazole | 25 | — |
| Dexamethasone | 18 | 14 |
| Triamcinolone Acetonide | 17 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2023-04-24
- Certified
- 2023-04-23
Frequently asked questions
- What is John Yang's NPI number?
- John Yang's National Provider Identifier (NPI) is 1013949551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Yang's specialty?
- John Yang is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Yang located?
- John Yang's practice location on file with NPPES is 2014 Washington St, Newton, MA 02462-1607.
- What is John Yang's phone number?
- The practice phone number listed in the NPPES registry for John Yang is (617) 219-1230.
- Does John Yang accept Medicare?
- John Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Yang's NPI active?
- Yes — John Yang's NPI (1013949551) is active in the NPPES registry as of the last update on 2023-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.