Meesun Rachel Sim, M.D.
Internal Medicine Physician · Plano, TX
Meesun Rachel Sim, M.D. is an internal medicine physician with a practice address in Plano, Texas, and NPI 1205018926, issued on Dec 4, 2007. Check the license (Texas N6026, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Meesun Rachel Sim
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- N6026 TX
231591 HI
Self-reported in NPPES; status is on the state search - Practice location
- 6309 Preston RD Ste 1400, Plano, TX 75024
- Phone
- (469) 443-0719
- Enumerated
- Dec 4, 2007
- Record last updated
- Apr 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (469) 443-0569
- Medicare enrollment
- Enrolled (PECOS I20110103000990); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Verify Meesun Rachel Sim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N6026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average internal medicine physician in 2024
3,901 Medicare Part D claims for 315 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium404 claims
- Rosuvastatin Calcium260 claims
- Amlodipine Besylate256 claims
- Losartan Potassium165 claims
- Metformin Hcl Er157 claims
- Levothyroxine Sodium136 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.
Industry payments in 2024: $721.63
28 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Meesun Rachel Sim among 9,175 internal medicine physician records in Texas
Meesun Rachel Sim, 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2005 · 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).
205 internal medicine physician records list a practice address in Plano
They are 205 of the 7,271 NPPES records with a practice address in Plano, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Plano → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rosemary Bates, M.D.Plano, TX 750241124007257
- Jason Conn, D.O.Plano, TX 750241336218437
- Narcisa Dusa, MDPlano, TX 750241982639589
- Muhammad Farooqi, M.D.Plano, TX 750241093896938
- Venkatesh Madhav, MDPlano, TX 750241144274341
- Lisa Medwedeff, M.D.Plano, TX 750241104827799
- Pamela Moore, MDPlano, TX 750241598838435
- Rama Mulupuri, MDPlano, TX 750241912003112
Common questions
What is Meesun Rachel Sim, M.D.'s NPI number?
Meesun Rachel Sim, M.D.'s National Provider Identifier (NPI) is 1205018926, issued on Dec 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Meesun Rachel Sim, M.D. located?
The NPPES record lists a practice address at 6309 Preston RD Ste 1400, Plano, TX, 75024. Phone: (469) 443-0719. Providers update this record themselves, so call before visiting.
How can I verify Meesun Rachel Sim, M.D.'s license?
NPPES lists Texas license number N6026, 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 Meesun Rachel Sim, M.D. prescribe under Medicare Part D?
In 2024, Meesun Rachel Sim, M.D. had 3,901 Medicare Part D claims for 315 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.