GREGORY MICHAEL DAY – Surgical Critical Care Physician, NPI 1295024370

GREGORY MICHAEL DAY is a healthcare provider. based in Loveland, Colorado. specializing in GENERAL SURGERY. They hold a License No. 125059546 (IL). The NPI Number for GREGORY MICHAEL DAY is 1295024370

Main info

Male
Sole Proprietor
15 Years Of Experience
Accepts Medicare Assignment
Name
GREGORY MICHAEL DAY
NPI
1295024370
Phone
(719) 364-6487
Address
2695 ROCKY MOUNTAIN AVENUE
Enumeration Date
29 March 2011
Last Update Date
24 July 2017

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7193646487
Graduation Year
2011 (15 years ago)
PAC ID
3274834841
Group Practice PAC ID
9638208549
Professional Enrollment ID
I20170907002159
Address ID
CO809095533CO1400XSTXX400
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience58
Completeness75
Years active:15State licenses:2Digital endpointsOther names

756 GENERAL SURGERY in CO

Provider Addresses for GREGORY MICHAEL DAY

  • 2695 ROCKY MOUNTAIN AVENUE

    SUITE 150

    LOVELAND, CO 805389071

    Phone: (719) 364-6487

    Fax: (719) 364-6488

    Type: Mailing

  • 1400 E BOULDER ST STE 600

    COLORADO SPRINGS, CO 809095533

    Phone: (719) 364-6487

    Fax: (719) 364-6488

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2017-09-07

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20170907002159IGeneral SurgeryCOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes3232$0
99291Critical care, first 30-74 minutes2619$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes2120$0
View full utilization report →

Insurance plans in this area (ZIP 80538)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9638208549View full group profile

Reviews

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Frequently asked questions

Is GREGORY MICHAEL DAY listed with a National Provider Identifier?
Yes — GREGORY MICHAEL DAY has NPI 1295024370 on file in the registry.
Would GREGORY MICHAEL DAY appear as active to a payer?
You can treat GREGORY MICHAEL DAY as active for directory purposes; confirm clinical privileges separately.
How would a patient describe GREGORY MICHAEL DAY's focus?
For GREGORY MICHAEL DAY, the primary taxonomy reads as Surgical Critical Care Physician. Clinical services aligned with this taxonomy classification.
Where in Colorado is GREGORY MICHAEL DAY registered?
Use Loveland, Colorado as the headline location for GREGORY MICHAEL DAY here.
When was this NPI issued?
Enumeration for GREGORY MICHAEL DAY is noted as March 29, 2011 where the registry provides it.

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