Janna L. Massar, MD
Internal Medicine Physician · Plano, TX
Janna L. Massar, MD is an internal medicine physician with a practice address in Plano, Texas, and NPI 1972516961, issued on Aug 14, 2006. Check the license (Texas K6484, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Janna L. Massar
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- K6484 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2208 Dallas Pkwy, Plano, TX 75093
- Phone
- (972) 403-7555
- Enumerated
- Aug 14, 2006
- Record last updated
- Feb 25, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (972) 403-9199
- Medicaid ID
- 037576801 TX
- Medicare enrollment
- Enrolled (PECOS I20120723000232); may accept Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Verify Janna L. Massar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K6484Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,413 Medicare Part D claims for 163 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 57 claims were for opioids.
Most prescribed
- Azithromycin139 claims
- Meloxicam129 claims
- Azelastine Hcl86 claims
- Levothyroxine Sodium86 claims
- Mounjaro84 claims
- Estradiol73 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: $13.07
1 payment: food and beverage; the largest payer was Pfizer Inc. 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.
Janna L. Massar among 9,175 internal medicine physician records in Texas
Janna L. Massar, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1996 · median 2004 among the 6,088 with a school on file
- Record last updated2016 · 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
- Linda Bang, M.D.Plano, TX 750931447243688
- Odette Campbell, M.D.Plano, TX 750931114989092
- Kimberly Crawford, MDPlano, TX 750931417926783
- Marie Dinh, M.D.Plano, TX 750931477518769
- Trung Duong, M.D.Plano, TX 750931841269578
- Safoora Harandi, M.D.Plano, TX 750931134126691
- Linda Krisik, M.D.Plano, TX 750931992782338
- Darius Peikari, MDPlano, TX 750931275590077
Common questions
What is Janna L. Massar, MD's NPI number?
Janna L. Massar, MD's National Provider Identifier (NPI) is 1972516961, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Janna L. Massar, MD located?
The NPPES record lists a practice address at 2208 Dallas Pkwy, Plano, TX, 75093. Phone: (972) 403-7555. Providers update this record themselves, so call before visiting.
How can I verify Janna L. Massar, MD's license?
NPPES lists Texas license number K6484, 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 Janna L. Massar, MD prescribe under Medicare Part D?
In 2024, Janna L. Massar, MD had 2,413 Medicare Part D claims for 163 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.