Physician Profile
Unclaimed ProfileAbout LINK
Based in Orange, CA, John S Link, MD is listed in the NPI registry under hematology/oncology. John graduated from University of Southern California Keck School of Medicine in 1972. John is also listed as specialising in specialist, medical oncology, and hematology & oncology.
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 is Dr. Link's specialty?
Dr. Link is a hematology/oncology in Orange, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “HEMATOLOGY/ONCOLOGY”.
NPI registry
Where can I find Dr. Link?
Dr. Link is listed at 230 S. MAIN ST SUITE 100, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Link?
The number on file is (714) 541-0101. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Link?
Dr. Link's National Provider Identifier is 1245281211. 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. Link's medical education?
Dr. Link attended University of Southern California Keck School of Medicine, graduating in 1972. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Link have?
Dr. Link has 54 years experience. Calculated from a graduation year of 1972, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Link known for?
According to Medicare billing data, Dr. Link performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as administration of hormonal anti-neoplastic chemotherapy under skin or into muscle and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Link's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Link. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (714) 541-0101
- Email not available
Practice Locations
230 S. MAIN ST SUITE 100
Orange, CA 92868
Procedures Most Often Billed to Medicare
9,416 services · 745 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
168 |
| Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96402 |
267 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
73 |
| Injection, denosumab, 1 mg | Drug given | J0897 |
5,280 |
| Injection, fulvestrant, 25 mg | Drug given | J9395 |
2,640 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
863 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
94 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
19 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
12 |
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.
Related specialists at this location 2
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.
Other hematology/oncology specialists in Orange 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1972 at University of Southern California Keck 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.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.