Feng Bai, MD
NPI 1336108372 · Pain Medicine Physician · Tracy, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Feng Bai, MD is a Pain Medicine Physician provider in Tracy, CA (NPI 1336108372).
Provider details
- NPI number
- 1336108372
- Entity type
- Individual
- Primary specialty
- Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- A83645 (CA)
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 tenure28% of score
20 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
111 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 111 | $88 |
Typical Medicare-allowed amounts for these services range $88–$88 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 93 | 20 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 46 | 12 |
| Pregabalin | 39 | — |
| Ibuprofen | 39 | 11 |
| Baclofen | 34 | — |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 29 | — |
| Duloxetine Hcl | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-20
- Last updated
- 2025-09-11
Frequently asked questions
- What is Feng Bai's NPI number?
- Feng Bai's National Provider Identifier (NPI) is 1336108372, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Feng Bai's specialty?
- Feng Bai is listed in the NPPES registry with a primary specialty of Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Feng Bai located?
- Feng Bai's practice location on file with NPPES is 459 W Eaton Ave, Tracy, CA 95376-3420.
- What is Feng Bai's phone number?
- The practice phone number listed in the NPPES registry for Feng Bai is (209) 830-6558.
- Does Feng Bai accept Medicare?
- Feng Bai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Feng Bai's NPI active?
- Yes — Feng Bai's NPI (1336108372) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.