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

NICHOLAS ANTHONY POPONEA DO
NPI 1538579776
Internal Medicine - Critical Care Medicine in Phoenix, AZ

Q: What is Nicholas Poponea's NPI number?

The NPI number for Nicholas Poponea is 1538579776. It was assigned to this individual provider in the NPPES registry on April 28, 2014.

Q: What is Nicholas Poponea's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Nicholas Poponea was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 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.

Active since April 28, 2014PECOS EnrolledAccepts Medicare Assignment

1930 E THOMAS RD, PHOENIX, AZ 85016(602) 532-1000 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 10, 2026, Aug 27, 2026, Jul 27, 2026 and 10 more (13 updates tracked since 2016).

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About Nicholas Anthony Poponea Do NPPES

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

NICHOLAS ANTHONY POPONEA DO (NPI 1538579776) is an individual critical care medicine provider in Phoenix, Arizona, licensed in Arizona (010622) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Michigan State University College Of Osteopathic Medicine (2014).

NPPES Registry Identity

NPI1538579776

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameNICHOLAS ANTHONY POPONEACredential: DO

Location Address1930 E THOMAS RDPhoenix, AZ 85016-7711

Mailing Address5151 E Broadway Rd Ste 107Mesa, AZ 85206-1346 · (480) 290-7000 · Fax (480) 325-3461

Phone(602) 532-1000

Sole ProprietorNo

Medical School CMSMichigan State University College Of Osteopathic MedicineGraduated 2014

Enumeration DateApril 28, 2014

Last NPPES UpdateSeptember 10, 202613 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2026

✔ NPI 1538579776 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

Licenses✔ Licensed in AZ · 010622✔ Licensed in WV · 3950✔ Licensed in WI · 73690✔ Licensed in GA · 93087✔ Licensed in TX · T1811

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal MedicineTaxonomy 207R00000X · License T1811 (TX), 5101021107 (MI), 010622 (AZ), 3950 (WV)

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 010622 (AZ), 73690 (WI), 3950 (WV), T1811 (TX)

1930 E THOMAS RD, Phoenix, AZ 85016

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Secondary Practice Locations 4

Location 13269 N Stockton Hill RdKingman, AZ 86409-3619 · Phone (928) 681-8577

Location 2501 Morris StCharleston, WV 25301-1326 · Phone (304) 388-5432

Location 35555 W Thunderbird RdGlendale, AZ 85306-4622 · Phone (602) 865-4717

Location 45151 E Broadway Rd Ste 107Mesa, AZ 85206-1346 · Phone (480) 290-7000 · Fax (480) 325-3461

Other Identifiers 1

Medicaid1538579776WV

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, CareSource, Cigna HealthCare of Arizona, Inc and more.Insurance ›

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

Nicholas Anthony Poponea Do 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 ID5092935163

PECOS Enrollment IDI20230919002072, I20260204004597

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 Reassignments

Medicare enrollment records show Nicholas Poponea reassigns Medicare billing to 15 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Arizona Acute Medical Services 1 PC

Same address

Hospitalist

1930 E THOMAS RD
Phoenix, AZ 85016

Reassigned Medicare billing, Arizona enrollment
302 clinicians in this Medicare group

NPI 1154860674 (602) 532-1000

St. Joseph's Hospital And Medical Center

2.3 mi

Emergency Care

350 W THOMAS RD
Phoenix, AZ 85013

Reassigned Medicare billing, Arizona enrollment
126 clinicians in this Medicare group

NPI 1255382412 (602) 406-3000

Arizona Pulmonary Specialists Ltd

11 mi

Pulmonary Disease

9060 E VIA LINDA STE 250
Scottsdale, AZ 85258

Reassigned Medicare billing, Arizona enrollment
69 clinicians in this Medicare group

NPI 1215986468 (480) 614-2000

Pulmonary Associates, PA

19 mi

Pulmonary Disease

5151 E BROADWAY RD STE 107
Mesa, AZ 85206

Reassigned Medicare billing, Arizona enrollment
15 clinicians in this Medicare group

NPI 1497854269 (480) 290-7000

Banner Hospital Based Physicians Arizona LLC

20 mi

Multi-Specialty

1900 N HIGLEY RD
Gilbert, AZ 85234

Reassigned Medicare billing, Arizona enrollment
1,081 clinicians in this Medicare group

NPI 1124374822 (480) 543-2034

Usacs Observation Medicine Services Of Colorado Inc.

352 mi

Critical Care Medicine

1010 THREE SPRINGS BLVD
Durango, CO 81301

Reassigned Medicare billing, Colorado enrollment
285 clinicians in this Medicare group

NPI 1659220663 (844) 474-4019

Christus Trinity Clinic Texas

976 mi

Family Medicine

520 DOUGLAS BLVD
Tyler, TX 75702

Reassigned Medicare billing, Texas enrollment
2,745 clinicians in this Medicare group

NPI 1285684225 (903) 315-4119

St. Alexius Medical Center

1,093 mi

Nurse Anesthetist, Certified Registered

900 E BROADWAY AVE
Bismarck, ND 58501

Reassigned Medicare billing, North Dakota enrollment
616 clinicians in this Medicare group

NPI 1629121074 (701) 530-7000

Ascension NE Wisconsin, Inc

1,452 mi

General Acute Care Hospital

500 S OAKWOOD RD
Oshkosh, WI 54904

Reassigned Medicare billing, Wisconsin enrollment
194 clinicians in this Medicare group

NPI 1912527193 (920) 223-2000

Ascension Medical Group-Southeast Wisconsin Inc

1,463 mi

Internal Medicine

400 W RIVER WOODS PKWY
Glendale, WI 53212

Reassigned Medicare billing, Wisconsin enrollment
1,343 clinicians in this Medicare group

NPI 1609881077 (414) 465-3000

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

Areas of Expertise CMS Part B claims 15

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.

278 services136 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

264 services133 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.

82 services82 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.

49 services37 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.

43 services18 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

25 services24 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.

22 services15 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

19 services16 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

16 services14 patients

Blood count, hemoglobin 85018

A blood count, specifically hemoglobin, is a standard test that measures the amount of hemoglobin in your blood. Hemoglobin is a protein in red blood cells that carries oxygen throughout your body. This test helps assess your overall health and detect a variety of disorders such as anemia or polycythemia.

15 services15 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

15 services15 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

15 services15 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

14 services14 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.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85016 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

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

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.

DANIEL HECK DO

Internal Medicine