Dr. Martin Lloyd Johnson, MD

Dr. Johnson practices at CHRISTUS Children's in San Antonio, Texas, part of CHRISTUS Health.

Dr. Johnson's NPI, 1538162201, was assigned on May 24, 2005. Dr. Johnson graduated from Baylor College Of Medicine in 1975. Dr. Johnson's Texas license number on file is E4435.

Dr. Johnson's primary practice is CHRISTUS Children's, at 333 N Santa Rosa St, San Antonio, TX 78207 in Bexar County. The practice phone is (210) 704-3342.

Dr. Johnson's primary practice is CHRISTUS Children's in San Antonio, Texas, part of CHRISTUS Health. Dr. Johnson is also affiliated with University Hospital. The medical group on file is Physicians Unity. Dmand AI also links Dr. Johnson to 4 more hospitals, 2 home health agencies and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 9 sites in all. Vendor and product names are available with a free account.

Plastic surgery is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Johnson is board certified in plastic surgery by the American Board of Plastic Surgery. Dmand AI has Dr. Johnson's licenses on file in 3 states: Texas, Arizona and California.

Dmand AI lists cancerous skin growth removal, chronic skin ulcer, head wound and lymphedema among the conditions Dr. Johnson treats.

CMS data shows 226 Medicare services from Dr. Johnson across 5 procedure codes in 2024, for 64 Medicare patients. Medicare paid $8,358 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 64 Medicare patients who saw Dr. Johnson in 2024. The largest group is 75 to 84, with 24 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.44, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 65, with 39% women.

In 2024, Dr. Johnson wrote 59 Medicare Part D claims for 20 patients. 98% of them were for generic drugs. CMS names the drug for 48 of them, across 3 drugs with 11 or more claims each, at $940 in total drug cost. In 2018, CMS named 39 claims across 3 drugs.

Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 213 procedures of removal of tissue by Dr. Johnson, more than 92% of the clinicians it reports for that procedure.

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 6 papers to Dr. Johnson, published from 2018 to 2025. Dr. Johnson has published most often in Aesthet Surg J. Dr. Johnson's most frequent co-authors are Victoria Lynnae Aime, MD, Prasad Ganapathy Iyer, MD and Sheridan Leigh James, MD.

CMS Open Payments shows 125 general payments to Dr. Johnson from 34 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 48% of the total. ETS Wound Care LLC paid the most, $53,053.

Dmand AI lists 2 awards for Dr. Johnson.

Dr. Johnson graduated from Baylor College Of Medicine in 1975. Dr. Johnson is a member of ACS.

Dr. Johnson is in network with 22 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.