Physician Profile
Ferrin K. Ruiz, MD
Unclaimed ProfileAbout Dr. Ruiz
Listed in the NPI registry as a specialist, Ferrin K. Ruiz, MD practices in Montebello, CA. Ferrin graduated from Yale University School of Medicine in 2013. According to Medicare claims data, Ferrin cared for 246 Medicare patients across 421 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, injection, dexamethasone sodium phosphate, 1 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
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
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (323) 712-4811
- Email not available
Practice Locations
833 W WHITTIER BLVD
Montebello, CA 90640
436 S Riverside Ave
Rialto, CA 92376
403 W F St
Ontario, CA 91762
Procedures Most Often Billed to Medicare
421 services · 246 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
51 | Less often than most peers in Specialist |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
39 | Less often than most peers in Specialist |
| Influenza vaccine, trivalent, 0.5 ml dosage | Treatment | 90658 |
12 | Less often than most peers in Specialist |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
92 | Less often than most peers in Specialist |
| Injection, ketorolac tromethamine, per 15 mg | Drug given | J1885 |
16 | Less often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
96 | As often as other peers in Specialist |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
62 | As often as other peers in Specialist |
| Annual alcohol misuse screening, 5 to 15 minutes | Billing code | G0442 |
17 | Less often than most peers in Specialist |
| Administration of influenza virus vaccine | Billing code | G0008 |
13 | Less often than most peers in Specialist |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
12 | Less often than most peers in Specialist |
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.
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 specialists in Montebello 8
Same specialty, same city.
Trained at Yale University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2013 at Yale University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Ruiz's specialty?
Dr. Ruiz is a specialist in Montebello, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Ruiz?
Dr. Ruiz is listed at 833 W Whittier Blvd, Montebello, CA 90640. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ruiz?
The number on file is (323) 712-4811. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ruiz's NPI number?
Dr. Ruiz's National Provider Identifier is 1477998870. 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
What is Dr. Ruiz's medical education?
Dr. Ruiz attended Yale University School of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ruiz been practicing?
Dr. Ruiz has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ruiz known for?
According to Medicare billing data, Dr. Ruiz performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine, trivalent, 0.5 ml dosage, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ruiz confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ruiz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.