Timothy Cheng, M.D.
NPI 1972940872 · Orthopaedic Surgery Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Cheng, M.D. is a Orthopaedic Surgery Physician provider in Fountain Valley, CA (NPI 1972940872).
Provider details
- NPI number
- 1972940872
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 278393 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
13 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
1,010 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 189 | $97 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 153 | $84 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 120 | $22 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 118 | $24 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 96 | $30 |
| Therapy Procedure Using Functional Activities97530 | 95 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 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
- 2013-05-31
- Last updated
- 2023-01-17
- Certified
- 2023-01-17
Frequently asked questions
- What is Timothy Cheng's NPI number?
- Timothy Cheng's National Provider Identifier (NPI) is 1972940872, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Cheng's specialty?
- Timothy Cheng is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Cheng located?
- Timothy Cheng's practice location on file with NPPES is 8700 Warner Ave Ste 140, Fountain Valley, CA 92708-3209.
- What is Timothy Cheng's phone number?
- The practice phone number listed in the NPPES registry for Timothy Cheng is (714) 850-7300.
- Does Timothy Cheng accept Medicare?
- Timothy Cheng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Cheng's NPI active?
- Yes — Timothy Cheng's NPI (1972940872) is active in the NPPES registry as of the last update on 2023-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.