NPI age
17 years
Enumerated 2009-02-17
● Active Type 2 · Organization
Mordecai N. Klein, Md, PA
Mordecai N. Klein, Md, PA is 1 of 883 internal medicine organizations in Texas.
Primary specialty
Internal Medicine
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Klein
President
Last NPPES update
2020-05-05
Source: monthly bulk 2026-05
How this organization compares
Across 883 active internal medicine providers in Texas.
NPI age
17 years
≈ at median (17 yr)
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2009 → 2026
2009-02Enumerated in NPPES
2009
2026
Where they practice
Primary practice location
4701 Old Shepard Pl Ste 160
Plano, TX 750935297
Mailing address
4701 Old Shepard Pl Ste 160
Plano, TX 750935297
Authorized official
Mordecai Noah Klein, M.D.
President
📞 2145577588
Individual providers at this organization
2 individual providers on file at this primary practice address.
- Brian Blatt, DO Internal Medicine NPI 1194796888
- Mordecai Klein, MD Internal Medicine NPI 1881629541
Specialties
-
Internal Medicine PrimaryAn area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical...
Other names on file (2)
Doing-business-as, former, and alternate names recorded by NPPES.
-
Harmony Heart Group
-
Harmony Heart Group
Practice context
Multi-provider organization. 2 individual providers on file at this primary address.
Provyx · Custom healthcare lists
Need all 883 Internal Medicine providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this organization
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Verify the organization is in good standing.Cross-check with the state's business registration and any applicable licensing boards.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.