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MICHAEL A HERMSMEIER CRNA
NPI 1245538271
Nurse Anesthetist, Certified Registered in Greeley, CO

Active since February 28, 2011PECOS EnrolledAccepts Medicare Assignment
1801 16TH ST, GREELEY, CO 80631(970) 350-6399(970) 378-4687 Get Directions Write a Review

NPPES record last updated: June 28, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael A Hermsmeier Crna NPPES

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

MICHAEL A HERMSMEIER CRNA (NPI 1245538271) is an individual nurse anesthetist, certified registered in Greeley, Colorado, licensed in Colorado (CRA-100031) and active in the NPI registry since February 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1245538271
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMICHAEL A HERMSMEIERCredential: CRNA
Location Address1801 16TH STGreeley, CO 80631-5154
Mailing Address1801 16th StGreeley, CO 80631-5154 · (970) 350-6399 · Fax (970) 378-4687
Phone(970) 350-6399
Fax(970) 378-4687
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateFebruary 28, 2011
Last NPPES UpdateJune 28, 2011
✔ NPI 1245538271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in CO · CRA-100031
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedRegistered NurseTaxonomy 163W00000X · License RN-172125 (CO)
1801 16TH ST, Greeley, CO 80631
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Other Identifiers 1

Medicare PINCOA105889CO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael A Hermsmeier Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103003074
PECOS Enrollment IDI20110601000353
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 Michael Hermsmeier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rocky Mountain State Anesthesia Providers
Same address
Anesthesiology
1801 16TH ST
Greeley, CO 80631
  • Reassigned Medicare billing, Colorado enrollment
  • 107 clinicians in this Medicare group
NPI 1730692054 (970) 810-4121

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80631 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. SHELDON GREGORY STADNYK M.D.
Internal Medicine
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 350-6002
KAITLYN ELIZABETH RUNNELS RN
Nurse Practitioner (Neonatal)
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 810-4121
NCMC SPECIALTY CLINIC
Clinic/Center (Multi-Specialty)
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 378-4475
JACOB BERNSTEIN
Neurological Surgery
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 810-5996
JARAH ADRIANNA GRASHORN
Social Worker (Clinical)
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 810-2044
MARGARET ELISABETH WILSON
Nurse Anesthetist, Certified Registered
1801 16TH ST
GREELEY, CO 80631
Weld County (517) 740-0386
ATRIUM APOTHECARY
Pharmacy (Community/Retail Pharmacy)
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 378-4500
ADVANCED PRACTITIONERS OF COLORADO, PC
Emergency Medicine
1801 16TH ST
GREELEY, CO 80631
Weld County (970) 352-6644

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 Michael Hermsmeier's NPI number?

The NPI number for Michael Hermsmeier is 1245538271. It was assigned to this individual provider in the NPPES registry on February 28, 2011.

Where is Michael Hermsmeier located?

Michael Hermsmeier practices at 1801 16th St, Greeley, CO 80631. The listed phone number is (970) 350-6399.

What is Michael Hermsmeier's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Michael Hermsmeier enrolled in Medicare?

Yes. Michael Hermsmeier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Michael Hermsmeier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Hermsmeier reassigns Medicare benefits to Rocky Mountain State Anesthesia Providers (Greeley, CO). 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 Michael Hermsmeier'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 Michael Hermsmeier was last updated on June 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.