Physician Profile
Unclaimed ProfileAbout SINGH
Willy Singh, D.O. practices internal medicine in Whittier, CA. Willy is also listed as specializing in nephrology. Medicare claims data shows Willy provided 1,200 services to 394 patients.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (562) 698-0811
- Email not available
Practice Locations
12401 WASHINGTON BLVD
Whittier, CA 90602
Procedures Most Often Billed to Medicare
1,200 services · 394 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
54 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
39 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
711 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
131 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
116 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
83 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
36 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
30 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related 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 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 29 related providers in 4 groups
Other internal medicines in Whittier 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Dialysis services, 2-3 physician visits per month (20 years or older) 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Singh specialize in?
Dr. Singh is an internal medicine in Whittier, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Singh located?
Dr. Singh is listed at 12401 WASHINGTON BLVD, Whittier, CA 90602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Singh's phone number?
The number on file is (562) 698-0811. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Singh?
Dr. Singh's National Provider Identifier is 1265587075. 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. Singh go to medical school?
Dr. Singh attended Other, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Singh have?
Dr. Singh has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Singh do most often?
According to Medicare billing data, Dr. Singh provides treatments such as dialysis services, 2-3 physician visits per month and dialysis services, 4 or more physician visits per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Singh's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Singh. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.