Tammy Lawrence Ralston, FNP-C
Family Nurse Practitioner · Austin, TX
Tammy Lawrence Ralston, FNP-C is a family nurse practitioner with a practice address in Austin, Texas, and NPI 1750880639, issued on Feb 7, 2018. Check the license (Texas AP138193, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Lawrence Ralston
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP138193 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3901 Spicewood Springs RD # 201, Austin, TX 78759
- Phone
- (737) 226-6700
- Enumerated
- Feb 7, 2018
- Record last updated
- Aug 6, 2024
- Medicare enrollment
- Enrolled (PECOS I20180919001826); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 21,242 in Texas → Look up another NPI →
Also registered at 3901 Spicewood Springs RD # 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brandey Woods, FNPFamily Nurse Practitioner1326761941
Verify Tammy Lawrence Ralston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license AP138193Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average family nurse practitioner in 2024
1,769 Medicare Part D claims for 167 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 27 claims were for opioids.
Most prescribed
- Atorvastatin Calcium72 claims
- Furosemide64 claims
- Amlodipine Besylate51 claims
- Trazodone Hcl47 claims
- Gabapentin40 claims
- Carvedilol39 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.
Bills Medicare through one group practice
- Clinical Bridges PLLCMansfield, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Lawrence Ralston among 21,242 family nurse practitioner records in Texas
Tammy Lawrence Ralston, FNP-C is one of 21,242 family nurse practitioner records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 42% of them.
- NPI issued2018 · 42% of these records are older, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2017 · median 2018 among the 11,286 with a school on file
- Record last updated2024 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
876 family nurse practitioner records list a practice address in Austin
They are 876 of the 26,585 NPPES records with a practice address in Austin, and 21,242 family nurse practitioner records in Texas.
All 21,242 in Texas → Every provider in Austin → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Angela Arsenault, FNPAustin, TX 787591003115718
- Charis Bearden, RN, FNP-CAustin, TX 787591376749036
- Antoinette BequetteAustin, TX 787591467797761
- Katharine Cody, RN, ND, FNP-CAustin, TX 787591801846456
- Angelique Crawford, RN, FNP-CAustin, TX 787591386884591
- Cathryn Garnett, FNPAustin, TX 787591417041401
- Brian King, APRNAustin, TX 787591558695858
- Christine Kremer, RN, NP-CAustin, TX 787591073814901
Common questions
What is Tammy Lawrence Ralston, FNP-C's NPI number?
Tammy Lawrence Ralston, FNP-C's National Provider Identifier (NPI) is 1750880639, issued on Feb 7, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Lawrence Ralston, FNP-C located?
The NPPES record lists a practice address at 3901 Spicewood Springs RD # 201, Austin, TX, 78759. Phone: (737) 226-6700. Providers update this record themselves, so call before visiting.
How can I verify Tammy Lawrence Ralston, FNP-C's license?
NPPES lists Texas license number AP138193, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy Lawrence Ralston, FNP-C prescribe under Medicare Part D?
In 2024, Tammy Lawrence Ralston, FNP-C had 1,769 Medicare Part D claims for 167 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.