GREGORY MITCHELL PETERSEN MD
NPI 1518544857
Hospitalist in Aurora, CO

Q: What is Gregory Petersen's NPI number?

The NPI number for Gregory Petersen is 1518544857. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Q: What is Gregory Petersen's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Petersen was last updated on January 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.

Active since March 24, 2021PECOS EnrolledAccepts Medicare Assignment

12605 E 16TH AVE, AURORA, CO 80045(720) 848-0000 Get Directions Write a Review

NPPES record last updated: January 31, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 1, 2024, Mar 24, 2021 (2 updates tracked since 2021).

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About Gregory Mitchell Petersen Md NPPES

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

GREGORY MITCHELL PETERSEN MD (NPI 1518544857) is an individual hospitalist provider in Aurora, Colorado, licensed in Colorado (DR.0073229) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (2021).

NPPES Registry Identity

NPI1518544857

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameGREGORY MITCHELL PETERSENCredential: MD

Location Address12605 E 16TH AVEAurora, CO 80045-2545

Mailing AddressPo Box 110429Aurora, CO 80042-0429

Phone(720) 848-0000

Sole ProprietorNo

Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2021

Enumeration DateMarch 24, 2021

Last NPPES UpdateJanuary 31, 20252 updates tracked since enumeration

NPPES CertifiedJanuary 31, 2025

✔ NPI 1518544857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CO · DR.0073229

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License DR.0073229 (CO)

12605 E 16TH AVE, Aurora, CO 80045

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory Mitchell Petersen Md 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 ID1355886623

PECOS Enrollment IDI20240710004266

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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

44 services17 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

39 services17 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

22 services21 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80045 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

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

Most-billed visit code 99214

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.

KEVIN BRADLEY ROTHCHILD MD

Surgery (Trauma Surgery)