Physician Profile
Ryan O'Neal Parker, M.D., PhD
Unclaimed ProfileAbout Dr. Parker
Based in Nashville, TN, Ryan O'Neal Parker, M.D., PhD is listed in the NPI registry under anesthesiology. Ryan is also listed as specializing in internal medicine. Medicare claims data shows Ryan provided 34 services to 33 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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (615) 343-6268
- Email not available
Practice Locations
1211 21ST AVENUE SOUTH MAB 526
Nashville, TN 37212
Procedures Most Often Billed to Medicare
34 services · 33 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
19 |
| Anesthesia for other procedure on lower abdomen | Anaesthesia | 00840 |
15 |
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 anesthesiology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
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 anesthesiology specialists in Nashville 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in TN who bill this service to Medicare most often.
Common questions
What does Dr. Parker specialize in?
Dr. Parker is an anesthesiology in Nashville, TN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where is Dr. Parker located?
Dr. Parker is listed at 1211 21ST AVENUE SOUTH MAB 526, Nashville, TN 37212. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Parker's phone number?
The number on file is (615) 343-6268. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Parker?
Dr. Parker's National Provider Identifier is 1407142219. 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. Parker go to medical school?
Dr. Parker attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Parker have?
Dr. Parker has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Parker do most often?
According to Medicare billing data, Dr. Parker performs procedures including insertion of artery tube for blood sampling or infusion through skin; provides treatments such as anesthesia for other procedure on lower abdomen. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Parker's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Parker. 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.