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DR. JOHNNY LEE MAYES JR. M.D.
NPI 1912298985
Obstetrics & Gynecology in San Antonio, TX

Active since April 26, 2011PECOS EnrolledAccepts Medicare Assignment
7922 EWING HALSELL DR, SUITE 170, SAN ANTONIO, TX 78229(210) 614-7993(210) 692-0432 Get Directions Write a Review

NPPES record last updated: August 26, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Johnny Lee Mayes Jr. M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHNNY LEE MAYES JR. M.D. (NPI 1912298985) is an individual obstetrics & gynecology provider in San Antonio, Texas, licensed in Texas (Q0790) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1912298985
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. JOHNNY LEE MAYES JR.Credential: M.D.
Location Address7922 EWING HALSELL DR, SUITE 170San Antonio, TX 78229-3786
Mailing Address7922 Ewing Halsell Dr, Suite 170San Antonio, TX 78229-3786 · (210) 614-7993 · Fax (210) 692-0432
Phone(210) 614-7993
Fax(210) 692-0432
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateApril 26, 2011
Last NPPES UpdateAugust 26, 2014
✔ NPI 1912298985 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in TX · Q0790
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
7922 EWING HALSELL DR, San Antonio, TX 78229
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, Cigna Healthcare, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Johnny Lee Mayes Jr. M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID648490797
PECOS Enrollment IDI20181111000004
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Johnny Mayes reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wt Medical Associates
699 mi
Internal Medicine
1629 WOODLAWN AVE
Dyersburg, TN 38024
  • Reassigned Medicare billing, Tennessee enrollment
  • 109 clinicians in this Medicare group
NPI 1295223279 (731) 512-1277
Wt University Medical Associates Inc
707 mi
Family Medicine
294 SUMMAR DR
Jackson, TN 38301
  • Reassigned Medicare billing, Tennessee enrollment
  • 50 clinicians in this Medicare group
NPI 1023572344 (731) 423-1932
Obhg Tennessee, P.C.
707 mi
Obstetrics & Gynecology
620 SKYLINE DR
Jackson, TN 38301
  • Reassigned Medicare billing, Tennessee enrollment
  • 92 clinicians in this Medicare group
NPI 1285924977 (800) 967-2289

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JANE T ATKINS M.D.
Pediatrics (Pediatric Infectious Diseases)
7922 EWING HALSELL DR, SUITE 270
SAN ANTONIO, TX 78229
Bexar County (210) 614-2828
WASHINGTON OB-GYN, P.A.
Obstetrics & Gynecology
7922 EWING HALSELL DR, SUITE 170
SAN ANTONIO, TX 78229
Bexar County (210) 614-5665
FEDERICO ROMAN NG, MDPA
Internal Medicine
7922 EWING HALSELL DR, SUITE 270
SAN ANTONIO, TX 78229
Bexar County (210) 614-2828
DR. MUHAMMED MUNIR M.D
Pediatrics
7922 EWING HALSELL DR, 360
SAN ANTONIO, TX 78229
Bexar County (210) 614-7500
DR. LILLIAN M JONES M.D
Obstetrics & Gynecology (Gynecology)
7922 EWING HALSELL DR, STE 420
SAN ANTONIO, TX 78229
Bexar County (210) 614-8900
DR. ROY T VEVE M.D.
Obstetrics & Gynecology
7922 EWING HALSELL DR, SUITE 420
SAN ANTONIO, TX 78229
Bexar County (210) 614-3638
PAMELA D ROSEN CPNP
Pediatrics
7922 EWING HALSELL DR, STE 440
SAN ANTONIO, TX 78229
Bexar County (210) 614-2500
KEISHA L. LOFTIN, M.D., P.A.
Obstetrics & Gynecology
7922 EWING HALSELL DR, SUITE 170
SAN ANTONIO, TX 78229
Bexar County (210) 614-7993

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Johnny Mayes's NPI number?

The NPI number for Johnny Mayes is 1912298985. It was assigned to this individual provider in the NPPES registry on April 26, 2011.

Where is Johnny Mayes located?

Johnny Mayes practices at 7922 Ewing Halsell Dr Suite 170, San Antonio, TX 78229. The listed phone number is (210) 614-7993.

What is Johnny Mayes's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Johnny Mayes enrolled in Medicare?

Yes. Johnny Mayes is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Johnny Mayes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Johnny Mayes reassigns Medicare benefits to 3 organizations: Wt Medical Associates (Dyersburg, TN), Wt University Medical Associates Inc (Jackson, TN) and Obhg Tennessee, P.C. (Jackson, TN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Johnny Mayes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Johnny Mayes accept?

Health plans from BlueCross BlueShield of Tennessee, Cigna Healthcare and Oscar Insurance Company list Johnny Mayes as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Johnny Mayes was last updated on August 26, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.