NPPES file of Aug 9, 2026

Preston C. Alexander, MD

Obstetrics & Gynecology Physician · Frisco, TX

Preston C. Alexander, MD is an obstetrics & gynecology physician with a practice address in Frisco, Texas, and NPI 1649272394, issued on Aug 12, 2005. Check the license (Texas G4779, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649272394
Name
Preston C. Alexander
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G4779 TX
Self-reported in NPPES; status is on the state search
Practice location
4401 Coit RD, Frisco, TX 75035
Phone
(972) 377-6553
Enumerated
Aug 12, 2005
Record last updated
Jan 4, 2022
Fax
(972) 377-6453
Medicaid IDs
117299103 TX
117299104 TX
117299105 TX
117299106 TX
Medicare enrollment
Enrolled (PECOS I20100406000445); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 1983
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4401 Coit RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jennifer Baqar, AU.D.Audiologist1972918530
  2. Srivasa Chebrolu, MDNephrology Physician1124019450
  3. Octavio De La Pena, M.D.Gastroenterology Physician1780643692
  4. Dale Ehmer, M.D.Otolaryngology Physician1710030473
  5. Tracy Elliott, M.D.Obstetrics & Gynecology Physician1942202718
  6. Francisco Gonzalez-Rosales, MDInternal Medicine Physician1548268915

Verify Preston C. Alexander in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G4779
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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67% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

55 Medicare Part D claims for 13 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.

  1. Preston Alexander55
  2. Specialty average165

Most prescribed

  1. Estradiol12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $275.00

10 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Preston Alexander$275.00
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Medical City OB-Gyn, PLLCFrisco, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Preston C. Alexander among 3,524 obstetrics & gynecology physician records in Texas

Preston C. Alexander, MD is one of 3,524 obstetrics & gynecology physician records with a practice address in Texas. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1983 · median 2005 among the 2,093 with a school on file
  • Record last updated2022 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

58 obstetrics & gynecology physician records list a practice address in Frisco

They are 58 of the 4,217 NPPES records with a practice address in Frisco, and 3,524 obstetrics & gynecology physician records in Texas.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Jennifer Allen, MDFrisco, TX 750351003868332
  2. Jennifer Bailey, MDFrisco, TX 750351043244403
  3. Tracy Elliott, M.D.Frisco, TX 750351942202718
  4. Alan Greenberg, M.D.Frisco, TX 750351043212707
  5. Jennifer Gulick, M.D.Frisco, TX 750351639387087
  6. Elise Harper, M.D.Frisco, TX 750351235131012
  7. Luann Hassan, MDFrisco, TX 750351376681270
  8. Rajini Iyer, MDFrisco, TX 750351689669962

Common questions

What is Preston C. Alexander, MD's NPI number?

Preston C. Alexander, MD's National Provider Identifier (NPI) is 1649272394, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Preston C. Alexander, MD located?

The NPPES record lists a practice address at 4401 Coit RD, Frisco, TX, 75035. Phone: (972) 377-6553. Providers update this record themselves, so call before visiting.

How can I verify Preston C. Alexander, MD's license?

NPPES lists Texas license number G4779, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Preston C. Alexander, MD prescribe under Medicare Part D?

In 2024, Preston C. Alexander, MD had 55 Medicare Part D claims for 13 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.