Quick answers
- Does John Z. Zheng accept Medicare assignment?
- Yes. Medicare's clinician data says John Z. Zheng accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does John Z. Zheng see?
- In 2024, CMS data shows 392 Original Medicare patients and 3,248 services for John Z. Zheng. This counts Original Medicare only and measures volume, not quality.
- What is John Z. Zheng's NPI number?
- 1851711154. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for John Z. Zheng, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 392 |
|---|---|
| Services billed to Medicare | 3,248 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)557 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)172 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)142 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)135 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)101 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis75%
- Ischemic heart disease43%
- Diabetes40%
- Depression38%
Practice locations
Addresses where John Z. Zheng is enrolled with Medicare (CMS data updated October 2, 2026).
- 16311 Ventura Blvd, Suite 518Encino, CA 91436 (818) 501‑7246
Group practices
Medicare enrollment lists John Z. Zheng as a member of this group (CMS data updated October 2, 2026).
- Jeffrey B Glaser MD Medical3 clinicians in the group
Specialties
Other pain management doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Jeffrey B Glaser MD Medical
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851711154 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians