Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Nynke Den Hollander, MD

Individual provider Internal Medicine Physician · NPI 1124271812

Nynke Den Hollander, MD is a Hospitalist in Katy, Texas. Qualified in 2007, 19 years ago. Practices with Memorial Hermann Medical Group, a 753-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
19
Licensed in
TX
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

23900 Katy Fwy
Katy, TX 77494-1323
Phone: (281) 644-8112
Fax: (281) 644-8411
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1331 W Grand Pkwy N, Katy, TX 77493-2710 — (281) 392-8620

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence P1745 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence P1745 (TX)

Record details

NPI number1124271812
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 28, 2008
Last updated in NPPESMarch 23, 2026
Certification dateMarch 23, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Memorial Hermann Medical Group — 753 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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