Physician Profile
Unclaimed ProfileAbout FEI
Fei Fei, M.D. practices pathology in Duarte, CA. Fei is also listed as specializing in anatomic & clinical pathology. According to Medicare claims data, Fei cared for 1,147 Medicare patients across 1,868 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Fei specialize in?
Dr. Fei is a pathology in Duarte, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
Where is Dr. Fei located?
Dr. Fei is listed at 1500 DUARTE RD, Duarte, CA 91010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Fei's phone number?
The number on file is (800) 826-4673. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Fei's NPI number?
Dr. Fei's National Provider Identifier is 1124551312. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Fei go to medical school?
Dr. Fei attended Other, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Fei been practicing?
Dr. Fei has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Fei do most often?
According to Medicare billing data, Dr. Fei the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Fei confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fei. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (800) 826-4673
- Email not available
Practice Locations
1500 DUARTE RD
Duarte, CA 91010
Procedures Most Often Billed to Medicare
1,868 services · 1,147 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Molecular pathology procedure; physician interpretation and report | Billing code | G0452 |
863 |
| Molecular pathology procedure; physician interpretation and report | Billing code | G0452 |
664 |
| Preparation of specimen, manual | Lab test | 88381 |
196 |
| Preparation of specimen, manual | Lab test | 88381 |
145 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other pathology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pathology specialists in Duarte 4
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Other 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.