Mary A. Washington, MD, FACP
Nephrology Physician · Houston, TX
Mary A. Washington, MD, FACP is a nephrology physician with a practice address in Houston, Texas, and NPI 1811992894, issued on Jun 16, 2005. Check the license (Texas J0721, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mary A. Washington
- Credential
- MD, FACP
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- J0721 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1140 Westmont Dr, Houston, TX 77015
- Phone
- (713) 637-6320
- Enumerated
- Jun 16, 2005
- Record last updated
- Aug 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (713) 637-0735
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,159 in Texas → Look up another NPI →
Also registered at 1140 Westmont Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Davis, P.T.Physical Therapist1992829113
- Rafael Esquenazi, MD FACP FASNNephrology Physician1982609111
- Amani Gobran, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1790818342
- Thomas Hallisey, D.C.Chiropractor1346265618
- Donald Hearn, M.D.Family Medicine Physician1659363307
- Zehra Kapadia, MDMedical Oncology Physician1417930876
Verify Mary A. Washington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J0721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average nephrology physician in 2024
39 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Cyclosporine Modified12 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.
Mary A. Washington among 1,159 nephrology physician records in Texas
Mary A. Washington, MD, FACP is one of 1,159 nephrology physician records with a practice address in Texas. 89% 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 · 89% of these records are
- In the CMS Doctors and Clinicians fileNo · 82% of these records are
- Record last updated2011 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Texas
There are 1,159 nephrology physician records in Texas.
All 1,159 in Texas → Every provider in Houston → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Rafael Esquenazi, MD FACP FASNHouston, TX 770151982609111
- Ather Khokhar, MDHouston, TX 770151760487912
- Robert Thompson, M.D.Houston, TX 770161346211083
- Sibtain Ali, MDHouston, TX 770171013933902
- Camilo Barcenas, MDHouston, TX 770171932125929
- Eric Faust, MDHouston, TX 770171306862396
- Jennifer Finch, MDHouston, TX 770171225053879
- Salman Khan, MDHouston, TX 770171104842095
Common questions
What is Mary A. Washington, MD, FACP's NPI number?
Mary A. Washington, MD, FACP's National Provider Identifier (NPI) is 1811992894, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary A. Washington, MD, FACP located?
The NPPES record lists a practice address at 1140 Westmont Dr, Houston, TX, 77015. Phone: (713) 637-6320. Providers update this record themselves, so call before visiting.
How can I verify Mary A. Washington, MD, FACP's license?
NPPES lists Texas license number J0721, 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 Mary A. Washington, MD, FACP prescribe under Medicare Part D?
In 2024, Mary A. Washington, MD, FACP had 39 Medicare Part D claims; the average among nephrology physician prescribers was 1,465. 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.