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MR. SPYRIDON A MASTROYANNIS MD
NPI 1700272986
Obstetrics & Gynecology - Gynecologic Oncology in Aurora, CO

Active since April 14, 2015PECOS EnrolledAccepts Medicare Assignment
1665 AURORA CT, AURORA, CO 80045(303) 724-2066 Get Directions Write a Review

NPPES record last updated: January 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 27, 2022, Jul 21, 2022, Mar 8, 2022 and 1 more (4 updates tracked since 2017).

About Mr. Spyridon A Mastroyannis Md NPPES

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

MR. SPYRIDON A MASTROYANNIS MD (NPI 1700272986) is an individual gynecologic oncology provider in Aurora, Colorado, licensed in Colorado (DR.0068092) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Denver, and is a graduate of George Washington University School Of Medicine (2015).

NPPES Registry Identity

NPI1700272986
Entity TypeIndividualMale
Primary Taxonomy207VX0201X
Provider Legal NameMR. SPYRIDON A MASTROYANNISCredential: MD
Location Address1665 AURORA CTAurora, CO 80045-2517
Mailing Address12631 E 17th Ave Ste B198-5Aurora, CO 80045-2529 · (202) 390-8159
Phone(303) 724-2066
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2015
Enumeration DateApril 14, 2015
Last NPPES UpdateJanuary 14, 20254 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2025
✔ NPI 1700272986 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License✔ Licensed in CO · DR.0068092
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
1665 AURORA CT, Aurora, CO 80045
Open in Google Maps ↗

Secondary Practice Location 1

Location 1777 Bannock StDenver, CO 80204-4597 · Phone (303) 436-4949 · Fax (303) 602-9150

Accepted Insurance

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

Mr. Spyridon A Mastroyannis 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 ID4880990142
PECOS Enrollment IDI20220718000723
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 10

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
35 services35 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
32 services28 patients
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.
27 services24 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.
18 services13 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
16 services16 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
16 services13 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
$174.82 typical visit price
range $58.06 – $174.82
Typical copayment $43.70 (range $14.51 – $43.70)
Most-billed visit code 99205
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.

THERESA PACHECO MD
Dermatology (Procedural Dermatology)
1665 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
DR. TYLER ROBIN MD
Radiology (Radiation Oncology)
1665 AURORA CT, SUITE 1032, MSF706
AURORA, CO 80045
Adams County (720) 848-0100
MARCUS C ALT PH.D.
Psychologist (Clinical)
1665 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
KAITLIN OLSON PA
Physician Assistant (Medical)
1665 AURORA CT
AURORA, CO 80045
Adams County (720) 848-6400
DR. RYAN MICHAEL LANNING M.D., PHD.
Radiology (Radiation Oncology)
1665 AURORA CT, SUITE 1032
AURORA, CO 80045
Adams County (720) 848-0100
NICOLE PAIGE WOLSKI NP
Nurse Practitioner (Adult Health)
1665 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
CAILIN COLLINS MD
Internal Medicine (Hematology & Oncology)
1665 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
LISA MARIE BABAYAN PA
Physician Assistant
1665 AURORA CT
AURORA, CO 80045
Adams County (303) 724-2066

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 Spyridon Mastroyannis's NPI number?

The NPI number for Spyridon Mastroyannis is 1700272986. It was assigned to this individual provider in the NPPES registry on April 14, 2015.

Where is Spyridon Mastroyannis located?

Spyridon Mastroyannis practices at 1665 Aurora Ct, Aurora, CO 80045. The listed phone number is (303) 724-2066.

What is Spyridon Mastroyannis's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Spyridon Mastroyannis enrolled in Medicare?

Yes. Spyridon Mastroyannis 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.

What insurance does Spyridon Mastroyannis accept?

Health plans from Medica and UnitedHealthcare list Spyridon Mastroyannis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Spyridon Mastroyannis was last updated on January 14, 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.