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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DAVID MARK GREINER MD
NPI 1245808146
Student in an Organized Health Care Education/Training Program in Omaha, NE

Active since June 16, 2021PECOS Enrolled
983255 NEBRASKA MEDICAL CTR, OMAHA, NE 68198(402) 559-6160(402) 559-9080 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 28, 2026, Jun 16, 2021 (2 updates tracked since 2021).

About David Mark Greiner Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID MARK GREINER MD (NPI 1245808146) is an individual student in an organized health care education/training program in Omaha, Nebraska and active in the NPI registry since June 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Minneapolis, and is a graduate of Saint Louis University School Of Medicine (2021).

NPPES Registry Identity

NPI1245808146
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameDAVID MARK GREINERCredential: MD
Location Address983255 NEBRASKA MEDICAL CTROmaha, NE 68198-3255
Mailing Address983255 Nebraska Medical CtrOmaha, NE 68198-3255 · (402) 559-6160 · Fax (402) 559-9080
Phone(402) 559-6160
Fax(402) 559-9080
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2021
Enumeration DateJune 16, 2021
Last NPPES UpdateSeptember 28, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1245808146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 79828 (MN)
983255 NEBRASKA MEDICAL CTR, Omaha, NE 68198
Open in Google Maps ↗

Secondary Practice Location 1

Location 1701 Park AveMinneapolis, MN 55415-1623 · Phone (612) 873-3000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David Mark Greiner Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7810394004
PECOS Enrollment IDI20260902003150
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show David Greiner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hennepin Healthcare System, Inc
292 mi
Home Health
825 S 8TH ST, SL10
Minneapolis, MN 55404
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,247 clinicians in this Medicare group
NPI 1962914333 (612) 617-4600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALEXANDRA HERGENRADER MD
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-4500
DR. ALEXANDRA REGAN MD
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-4500
MADYSEN MARIE EDDY MD
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-4500
EMMA ELISE ANDREWS
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-4500
TEMITOPE BANWO DO
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-6160
HOLLY GERBERDING
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-8882
DR. MADISON ELIZABETH KELLY DO
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-4500
NIRANJANA BALU MD
Obstetrics & Gynecology
983255 NEBRASKA MEDICAL CTR
OMAHA, NE 68198
Douglas County (402) 559-4500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Greiner's NPI number?

The NPI number for David Greiner is 1245808146. It was assigned to this individual provider in the NPPES registry on June 16, 2021.

Where is David Greiner located?

David Greiner practices at 983255 Nebraska Medical Ctr, Omaha, NE 68198. The listed phone number is (402) 559-6160.

What is David Greiner's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is David Greiner enrolled in Medicare?

Yes. David Greiner is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for David Greiner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Greiner reassigns Medicare benefits to Hennepin Healthcare System, Inc (Minneapolis, MN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Greiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Greiner was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.