Clarissa M. Johnston, MD
Hospice and Palliative Medicine (Internal Medicine) Physician · Austin, TX
Clarissa M. Johnston, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in Austin, Texas, and NPI 1649342445, issued on Nov 15, 2006. Check the license (Texas Q1181, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Clarissa M. Johnston
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License numbers
- Q1181 TX
A62097 CA
Self-reported in NPPES; status is on the state search - Practice location
- 601 E 15TH St, Austin, TX 78701
- Phone
- (512) 324-1000
- Enumerated
- Nov 15, 2006
- Record last updated
- Oct 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid IDs
- 00A620970 CA
341861801 TX - Medicare enrollment
- Enrolled (PECOS I20141125002017); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1995
- 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 601 E 15TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joanne Adams, D.O.Emergency Medical Services (Emergency Medicine) Physician1255396008
- Sikander Adeni, MDNeonatal-Perinatal Medicine Physician1417901240
- Milton Anderson, M.D.Emergency Medicine Physician1912962713
- Michelle BanisterInternal Medicine Physician1619210929
- Phyllis Barron, RN, APRN, FNPCFamily Nurse Practitioner1598757791
- Stephen Bekanich, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1578587770
Verify Clarissa M. Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q1181Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 72.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Seton Family OF DoctorsAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clarissa M. Johnston among 169 hospice and palliative medicine (internal medicine) physician records in Texas
Clarissa M. Johnston, MD 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
- Graduated1995 · median 2012 among the 136 with a school on file
- Record last updated2015 · 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
- Stephen Bekanich, M.D.Austin, TX 787011578587770
- Quan Dang, M.D.Austin, TX 787011316967946
- Tyler Jorgensen, M.D.Austin, TX 787011396906335
- Brooke Wagen, MDAustin, TX 787021871114561
- Louis Lux, M.D.Austin, TX 787051407872955
- Irfan Hydari, MDAustin, TX 787121659394500
- Andre Yu, MDAustin, TX 787121538693940
- Rosie Punchard Powell, RN BSNAustin, TX 787281841834934
Common questions
What is Clarissa M. Johnston, MD's NPI number?
Clarissa M. Johnston, MD's National Provider Identifier (NPI) is 1649342445, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clarissa M. Johnston, MD located?
The NPPES record lists a practice address at 601 E 15TH St, Austin, TX, 78701. Phone: (512) 324-1000. Providers update this record themselves, so call before visiting.
How can I verify Clarissa M. Johnston, MD's license?
NPPES lists Texas license number Q1181, 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.
What is Clarissa M. Johnston, MD's MIPS final score?
The 2023 MIPS final score is 72.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.