Physician Profile
John Robyn V. Diez, MD
Unclaimed ProfileAbout Dr. Diez
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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
- (301) 533-2190
- Email not available
Practice Locations
69 WOLF ACRES DR
Oakland, MD 21550
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.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Diez's specialty?
Dr. Diez is an addiction medicine in Oakland, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Diez?
Dr. Diez is listed at 69 Wolf Acres Dr, Oakland, MD 21550. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Diez?
The number on file is (301) 533-2190. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Diez?
Dr. Diez's National Provider Identifier is 1942881909. 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. Diez's medical education?
Dr. Diez attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Diez have?
Dr. Diez has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Diez's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Diez. 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.