Alvin Raymond Co Tan, M.D.
Internal Medicine Physician · Katy, TX
Alvin Raymond Co Tan, M.D. is an internal medicine physician with a practice address in Katy, Texas, and NPI 1093178725, issued on Mar 31, 2016. Check the license (Texas P6925, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alvin Raymond Co Tan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- P6925 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2510 W Grand Pkwy N, Katy, TX 77449
- Phone
- (713) 442-4222
- Enumerated
- Mar 31, 2016
- Record last updated
- Jun 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 367163803 TX
- Medicare enrollment
- Enrolled (PECOS I20170209000385); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 2510 W Grand Pkwy N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alvin Raymond Co Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P6925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,430 Medicare Part D claims for 497 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium207 claims
- Vitamin D2151 claims
- Lisinopril77 claims
- Amlodipine Besylate71 claims
- Amoxicillin-Clavulanate Potass71 claims
- Jardiance70 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
- Kelsey-Seybold Medical Group, PLLCKaty, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alvin Raymond Co Tan among 9,175 internal medicine physician records in Texas
Alvin Raymond Co Tan, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 74% of them.
- NPI issued2016 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1995 · median 2004 among the 6,088 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 internal medicine physician records list a practice address in Katy
They are 54 of the 5,078 NPPES records with a practice address in Katy, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Katy → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ayesha Mian, MDKaty, TX 774491710447479
- Isabel Padilla, MDKaty, TX 774491447644950
- Barry Troyan, MDKaty, TX 774491295733483
- Ali Zakir, MDKaty, TX 774491124128673
- John Adams, M.DKaty, TX 774501922006410
- Harold Gottlieb, M.D.Katy, TX 774501336133081
- Anuradha Kantamani, M.D.Katy, TX 774501649244054
- Willy Pezzia, M.D.Katy, TX 774501982604575
Common questions
What is Alvin Raymond Co Tan, M.D.'s NPI number?
Alvin Raymond Co Tan, M.D.'s National Provider Identifier (NPI) is 1093178725, issued on Mar 31, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alvin Raymond Co Tan, M.D. located?
The NPPES record lists a practice address at 2510 W Grand Pkwy N, Katy, TX, 77449. Phone: (713) 442-4222. Providers update this record themselves, so call before visiting.
How can I verify Alvin Raymond Co Tan, M.D.'s license?
NPPES lists Texas license number P6925, 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 Alvin Raymond Co Tan, M.D. prescribe under Medicare Part D?
In 2024, Alvin Raymond Co Tan, M.D. had 1,430 Medicare Part D claims for 497 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.