Phenu V. Zachariah, DO
Endocrinology, Diabetes & Metabolism Physician · Tomball, TX
Phenu V. Zachariah, DO is an endocrinology, diabetes & metabolism physician with a practice address in Tomball, Texas, and NPI 1386838340, issued on Sep 4, 2007. Check the license (Texas V1927, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Phenu V. Zachariah
- Credential
- DO
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- V1927 TX
2010020902 MO
70454 WI
Self-reported in NPPES; status is on the state search - Practice location
- 425 Holderrieth Blvd Ste 207, Tomball, TX 77375
- Phone
- (713) 347-8843
- Enumerated
- Sep 4, 2007
- Record last updated
- Jul 8, 2026
- Fax
- (833) 764-6128
- Medicaid IDs
- 100084384 WI
1598759169 MO - Medicare enrollment
- Enrolled (PECOS I20260226001954); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2004
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 743 in Texas → Look up another NPI →
Verify Phenu V. Zachariah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license V1927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,642 Medicare Part D claims for 195 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 67% of claims.
Most prescribed
- Levothyroxine Sodium235 claims
- Mounjaro183 claims
- Lantus Solostar143 claims
- Trulicity98 claims
- Tresiba Flextouch U-10074 claims
- Humalog Kwikpen U-10059 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.
Phenu V. Zachariah among 743 endocrinology, diabetes & metabolism physician records in Texas
Phenu V. Zachariah, DO is one of 743 endocrinology, diabetes & metabolism physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 48% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2004 · median 2004 among the 560 with a school on file
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Texas
There are 743 endocrinology, diabetes & metabolism physician records in Texas.
All 743 in Texas → Every provider in Tomball → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Tariq Zia, MDTomball, TX 773751235209537
- Ulupi Choksi, MDShenandoah, TX 773801891851531
- Lyubov Olenina, M.D.The Woodlands, TX 773801699043687
- Chun-Kwok Wong, MDShenandoah, TX 773801356439087
- Lorianna Aleman-MaymiShenandoah, TX 773811235685223
- Annie Thomas, MDShenandoah, TX 773811801892138
- Paul Piper, MDThe Woodlands, TX 773821760412035
- Dennis Roy Ferrer, MDShenandoah, TX 773841386750917
Common questions
What is Phenu V. Zachariah, DO's NPI number?
Phenu V. Zachariah, DO's National Provider Identifier (NPI) is 1386838340, issued on Sep 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Phenu V. Zachariah, DO located?
The NPPES record lists a practice address at 425 Holderrieth Blvd Ste 207, Tomball, TX, 77375. Phone: (713) 347-8843. Providers update this record themselves, so call before visiting.
How can I verify Phenu V. Zachariah, DO's license?
NPPES lists Texas license number V1927, 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 Phenu V. Zachariah, DO prescribe under Medicare Part D?
In 2024, Phenu V. Zachariah, DO had 1,642 Medicare Part D claims for 195 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.