Melissa Isabel Lancaster, DO
Emergency Medicine Physician · Katy, TX
Melissa Isabel Lancaster, DO is an emergency medicine physician with a practice address in Katy, Texas, and NPI 1881919793, issued on Apr 2, 2010. Check the license (Texas P5099, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Melissa Isabel Lancaster
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- P5099 TX
Self-reported in NPPES; status is on the state search - Practice location
- 23900 Katy Fwy, Katy, TX 77494
- Phone
- (281) 644-7000
- Enumerated
- Apr 2, 2010
- Record last updated
- Sep 17, 2024
- Fax
- (225) 358-3939
- Medicaid ID
- 2106953 LA
- Medicare enrollment
- Enrolled (PECOS I20130613000298); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 23900 Katy Fwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Haydar Alamiri, MDHospitalist Physician1528621687
- Gheyath AlbadwiHospitalist Physician1881049500
- Omar Arshad, MDHospitalist Physician1487394110
- Kelly Ballentine, D.O.Emergency Medicine Physician1659668465
Verify Melissa Isabel Lancaster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P5099Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average emergency medicine physician in 2024
105 Medicare Part D claims for 78 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen15 claims
- Cephalexin13 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
- Memorial Hermann Hospital Based Physician GroupHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Melissa Isabel Lancaster among 4,885 emergency medicine physician records in Texas
Melissa Isabel Lancaster, DO is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 48% of them.
- NPI issued2010 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2010 · median 2013 among the 2,779 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Texas
There are 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Katy → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Meredith Brown, M.D.Katy, TX 774941639306574
- Joseph Caruso, MDKaty, TX 774941174703862
- Santosh Dixit, D.O.Katy, TX 774941033444245
- Michele Fowler, D.O.Katy, TX 774941306832522
- Michael Freeto, M.D.Katy, TX 774941720279748
- Susan Frenzel, M.D.Katy, TX 774941346487915
- Alexander Kadin, MDKaty, TX 774941619089158
- Johnathon Kerns, DOKaty, TX 774941770813610
Common questions
What is Melissa Isabel Lancaster, DO's NPI number?
Melissa Isabel Lancaster, DO's National Provider Identifier (NPI) is 1881919793, issued on Apr 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Isabel Lancaster, DO located?
The NPPES record lists a practice address at 23900 Katy Fwy, Katy, TX, 77494. Phone: (281) 644-7000. Providers update this record themselves, so call before visiting.
How can I verify Melissa Isabel Lancaster, DO's license?
NPPES lists Texas license number P5099, 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 Melissa Isabel Lancaster, DO prescribe under Medicare Part D?
In 2024, Melissa Isabel Lancaster, DO had 105 Medicare Part D claims for 78 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.