Physician Profile
Unclaimed ProfileAbout MERWIN
John D Merwin, MD practises anesthesiology in Saint Louis, MO. John is a 1985 graduate of University of Texas Medical School at San Antonio.
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. Merwin's specialty?
Dr. Merwin is an anesthesiology in Saint Louis, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where can I find Dr. Merwin?
Dr. Merwin is listed at 10925 BROOKTRAIL CT, Saint Louis, MO 63141. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Merwin?
The number on file is (314) 473-6800. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Merwin?
Dr. Merwin's National Provider Identifier is 1770562209. 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. Merwin's medical education?
Dr. Merwin attended University of Texas Medical School at San Antonio, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Merwin have?
Dr. Merwin has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Merwin known for?
According to Medicare billing data, Dr. Merwin provides treatments such as anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope and anesthesia for other procedure on large bowel using an endoscope. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Merwin's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Merwin. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (314) 473-6800
- Email not available
Practice Locations
10925 BROOKTRAIL CT
Saint Louis, MO 63141
Procedures Most Often Billed to Medicare
92 services · 90 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | Anaesthesia | 00731 |
59 |
| Anesthesia for other procedure on large bowel using an endoscope | Anaesthesia | 00811 |
33 |
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.
Other anesthesiology specialists in Saint Louis 8
Same specialty, same city.
Trained at University of Texas Medical School at San Antonio 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at University of Texas Medical School at San Antonio 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 8
Providers in MO 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.