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

MRS. COLLEEN DIFERDINANDO APN
NPI 1558946533
Nurse Practitioner - Family in Denver, CO

Active since March 11, 2021PECOS EnrolledAccepts Medicare Assignment
8354 E NORTHFIELD BLVD STE 3700, DENVER, CO 80238(866) 849-0692 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 6, 2026, May 15, 2026, Apr 30, 2026 and 4 more (7 updates tracked since 2021).

About Mrs. Colleen Diferdinando Apn NPPES

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

MRS. COLLEEN DIFERDINANDO APN (NPI 1558946533) is an individual family provider in Denver, Colorado, licensed in Colorado (APN.0995334-NP) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1558946533
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. COLLEEN DIFERDINANDOCredential: APN
Location Address8354 E NORTHFIELD BLVD STE 3700Denver, CO 80238-3131
Mailing Address2620 Elm Hill PikeNashville, TN 37214-3108
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 11, 2021
Last NPPES UpdateAugust 6, 20267 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
NPI 1558946533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
Licenses Licensed in CO · APN.0995334-NP Licensed in HI · APRN-5883 Licensed in GA · GAA-NP005355 Licensed in NM · 88995 Licensed in NE · 116864
8354 E NORTHFIELD BLVD STE 3700, Denver, CO 80238

Other Identifiers 3

OtherRXN.0104615-NPCO · Co Rxn License
OtherAPN.0995334-NPCO · Co Apn License
OtherRN.1627319CO · Co Rn License

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

Mrs. Colleen Diferdinando Apn 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 ID749697563
PECOS Enrollment IDI20210323002020
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 7

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
179 services84 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
104 services78 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
60 services60 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
35 services23 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
13 services13 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80238 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
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
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 14

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

Internal Medicine (Nephrology)
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
Physician Assistant
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
Counselor (Mental Health)
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
In Home Supportive Care
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
Nurse Practitioner (Adult Health)
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
Counselor (Mental Health)
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
Behavior Technician
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238
Counselor (Mental Health)
8354 E NORTHFIELD BLVD STE 3700
DENVER, CO 80238

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 Colleen Diferdinando's NPI number?

The NPI number for Colleen Diferdinando is 1558946533. It was assigned to this individual provider in the NPPES registry on March 11, 2021.

Where is Colleen Diferdinando located?

Colleen Diferdinando practices at 8354 E Northfield Blvd Ste 3700, Denver, CO 80238. The listed phone number is (866) 849-0692.

What is Colleen Diferdinando's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Colleen Diferdinando enrolled in Medicare?

Yes. Colleen Diferdinando 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.

When was this NPI record last updated?

The NPPES record for Colleen Diferdinando was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.