Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Nicola Louise Hempel, ACNP-BC

Individual provider Nurse Practitioner · NPI 1114286440

Nicola Louise Hempel, ACNP-BC is a Nurse Practitioner in Boulder, Colorado. Qualified in 2010, 16 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Colorado, Massachusetts and Tennessee.

Years since qualifying
16
Licensed in
CO, MA, TN
In the registry since
2012
Specialties on file
3
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Practice location Address checks out

4743 Arapahoe Ave Ste 100
Boulder, CO 80303-1123
Phone: (303) 415-4599
Fax: (303) 443-9497
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 101 Erie Pkwy Ste 201g, Erie, CO 80516-4072 — (303) 415-4599
  • 55 Fruit St, Boston, MA 02241-9095 — (617) 716-2000

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 2305643 (MA)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 16672 (TN)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence APN.0998761-NP (CO)

Record details

NPI number1114286440
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP-BC
Sole proprietorNo
NPI enumeratedMay 7, 2012
Last updated in NPPESJanuary 23, 2026
Certification dateJanuary 23, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients18
Services billed 18 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $21 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Massachusetts General Physicians Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3484 clinicians in the practice; 12 are shown here.

Other providers in Boulder