Physician Profile
Marlyn J. Mayo, MD is a healthcare provider in Dallas, TX specializing in internal medicine. Marlyn trained at Baylor College of Medicine, graduating in 1990. According to Medicare claims data, Marlyn cared for 68 Medicare patients across 80 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
5323 HARRY HINES BLVD
Dallas, TX 75390
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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Endocrine, blood, and bone
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Most searched procedures
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80 services · 68 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
50 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
19 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Mayo is an internist in Dallas, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Dr. Mayo is listed at 5323 Harry Hines Blvd, Dallas, TX 75390. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (214) 645-8600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Mayo's National Provider Identifier is 1003872292. 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
Dr. Mayo attended Baylor College of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
Dr. Mayo has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Mayo performs procedures including biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mayo. 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.