Physician Profile
Unclaimed ProfileAbout MCCLAY
Edward F McClay, M.D. practices medical oncology in San Marcos, CA. Medicare claims data shows Edward provided 92,805 services to 2,178 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Common questions
What does Dr. McClay specialize in?
Dr. McClay is an oncologist in San Marcos, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Medical Oncology”.
NPI registry
Where is Dr. McClay located?
Dr. McClay is listed at 838 NORDAHL RD STE 300, San Marcos, CA 92069. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. McClay's phone number?
The number on file is (760) 747-8935. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. McClay?
Dr. McClay's National Provider Identifier is 1497727465. 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
How much experience does Dr. McClay have?
Dr. McClay has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Dr. McClay do most often?
According to Medicare billing data, Dr. McClay performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as nuclear medicine study whole body with ct scan and nuclear medicine study from skull base to mid-thigh with ct scan; provides treatments such as injection of drug or substance under skin or into muscle and administration of chemotherapy into vein, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. McClay's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. McClay. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (760) 747-8935
- Email not available
Practice Locations
838 NORDAHL RD STE 300
San Marcos, CA 92069
Procedures Most Often Billed to Medicare
92,805 services · 2,178 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
978 |
| Nuclear medicine study whole body with ct scan | Imaging | 78816 |
108 |
| Nuclear medicine study from skull base to mid-thigh with ct scan | Imaging | 78815 |
103 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
354 |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
293 |
| Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | Treatment | 96367 |
291 |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Drug given | J0881 |
39,700 |
| Injection, ferric carboxymaltose, 1 mg | Drug given | J1439 |
12,000 |
| Injection, pembrolizumab, 1 mg | Drug given | J9271 |
9,400 |
| Injection, nivolumab and relatlimab-rmbw, 3 mg/1 mg | Drug given | J9298 |
7,360 |
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.
Related specialists at this location 1
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.
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.