Sandra Lynn Frellsen, M.D.
Hospice and Palliative Medicine (Internal Medicine) Physician · Austin, TX
Sandra Lynn Frellsen, M.D. is a hospice and palliative medicine (internal medicine) physician with a practice address in Austin, Texas, and NPI 1538114426, issued on May 23, 2006. Check the license (Texas P4758, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Sandra Lynn Frellsen
- Credential
- M.D.
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- P4758 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4107 Spicewood Springs RD, Austin, TX 78759
- Phone
- (512) 397-3360
- Enumerated
- May 23, 2006
- Record last updated
- Jan 19, 2023
- Fax
- (512) 343-7107
- Medicaid ID
- 1538114426 TX
- Medicare enrollment
- Enrolled (PECOS I20140919001867); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 169 in Texas → Look up another NPI →
Also registered at 4107 Spicewood Springs RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Bevins, M.D., PH.D.Family Medicine Physician1063631448
- Robert Friedman, MDHospice and Palliative Medicine (Family Medicine) Physician1013994938
- Faith Holmes, M.D.Family Medicine Physician1235133836
Verify Sandra Lynn Frellsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P4758Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% more Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
1,174 Medicare Part D claims for 323 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. 136 claims were for opioids.
Most prescribed
- Levothyroxine Sodium77 claims
- Haloperidol48 claims
- Lorazepam48 claims
- Mirtazapine46 claims
- Metoprolol Tartrate40 claims
- Gabapentin33 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
- Central Texas Palliative Care AssociatesAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sandra Lynn Frellsen among 169 hospice and palliative medicine (internal medicine) physician records in Texas
Sandra Lynn Frellsen, M.D. is one of 169 hospice and palliative medicine (internal medicine) physician records with a practice address in Texas. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 79% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1998 · median 2012 among the 136 with a school on file
- Record last updated2023 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Texas
There are 169 hospice and palliative medicine (internal medicine) physician records in Texas.
All 169 in Texas → Every provider in Austin → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Derek Lejeune, M.D.Austin, TX 787591609895002
- Kate Tindall, M.D.Austin, TX 787591649565409
- Avanti Gandhi, M.D.Austin, TX 787571194010512
- Elisa Griswold, DOAustin, TX 787441962995415
- Sarah Lee, MDLakeway, TX 787381700318664
- Rosie Punchard Powell, RN BSNAustin, TX 787281841834934
- Irfan Hydari, MDAustin, TX 787121659394500
- Andre Yu, MDAustin, TX 787121538693940
Common questions
What is Sandra Lynn Frellsen, M.D.'s NPI number?
Sandra Lynn Frellsen, M.D.'s National Provider Identifier (NPI) is 1538114426, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sandra Lynn Frellsen, M.D. located?
The NPPES record lists a practice address at 4107 Spicewood Springs RD, Austin, TX, 78759. Phone: (512) 397-3360. Providers update this record themselves, so call before visiting.
How can I verify Sandra Lynn Frellsen, M.D.'s license?
NPPES lists Texas license number P4758, 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 Sandra Lynn Frellsen, M.D. prescribe under Medicare Part D?
In 2024, Sandra Lynn Frellsen, M.D. had 1,174 Medicare Part D claims for 323 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.