Physician Profile
Unclaimed ProfileAbout GU
Ron Y Gu, MD is a healthcare provider in Hacienda Heights, CA specialising in internal medicine. Ron trained at National Medical University, graduating in 1968.
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. Gu specialise in?
Dr. Gu is an internal medicine in Hacienda Heights, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Gu located?
Dr. Gu is listed at 1850 S AZUSA AVE SUITE 205, Hacienda Heights, CA 91745. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gu's phone number?
The number on file is (626) 964-2880. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Gu?
Dr. Gu's National Provider Identifier is 1851494215. 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. Gu go to medical school?
Dr. Gu attended National Medical University, graduating in 1968. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gu have?
Dr. Gu has 58 years experience. Calculated from a graduation year of 1968, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Gu do most often?
According to Medicare billing data, Dr. Gu performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gu. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (626) 964-2880
- Email not available
Practice Locations
1850 S AZUSA AVE SUITE 205
Hacienda Heights, CA 91745
Procedures Most Often Billed to Medicare
93 services · 85 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
25 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
20 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
16 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
16 |
| Advance care planning, first 30 minutes | Office visit | 99497 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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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 internal medicines at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 15 related providers in 3 groups
Other internal medicines in Hacienda Heights 4
Same specialty, same city.
Trained at National Medical University 3
Other providers in the same specialty who trained at the same institution.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.