DR. GEORGE DAVID NACOS M.D.
NPI 1235159716
Family Medicine in Washington, IA

Q: What is George Nacos's NPI number?

The NPI number for George Nacos is 1235159716. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Q: What is George Nacos's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for George Nacos was last updated on May 6, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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 July 20, 2006PECOS EnrolledAccepts Medicare Assignment

1230 S IOWA AVE, WASHINGTON, IA 52353(319) 653-7291(319) 653-7440 Get Directions Write a Review

NPPES record last updated: May 6, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. George David Nacos M.d. NPPES

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

DR. GEORGE DAVID NACOS M.D. (NPI 1235159716) is an individual family medicine provider in Washington, Iowa, licensed in Iowa (29699) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Washington County Hospital And Clinics, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (1992).

NPPES Registry Identity

NPI1235159716

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. GEORGE DAVID NACOSCredential: M.D.

Location Address1230 S IOWA AVEWashington, IA 52353-1144

Mailing AddressPo Box 909Washington, IA 52353-0909 · (319) 653-7291 · Fax (319) 653-7440

Phone(319) 653-7291

Fax(319) 653-7440

Sole ProprietorNo

Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 1992

Enumeration DateJuly 20, 2006

Last NPPES UpdateMay 6, 2014

✔ NPI 1235159716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in IA · 29699

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

1230 S IOWA AVE, Washington, IA 52353

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Other Identifiers 3

Medicare ID-Type Unspecified45925IA

Medicare UPINF83192IA

Medicaid4118174IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health 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

Dr. George David Nacos M.d. 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 ID345304812

PECOS Enrollment IDI20090128000067

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 Reassignment

Medicare enrollment records show George Nacos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington County Hospital

Same address

Rural Health

1230 S IOWA AVE
Washington, IA 52353

Reassigned Medicare billing, Iowa enrollment
Also billed through NPI 1215539952 (Iowa)
86 clinicians in this Medicare group

NPI 1669802955 (319) 653-7291

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Washington County Hospital And Clinics

Critical Access Hospitals · Washington, IA

OwnershipGovernment - Local

CMS Certification Number161344

Location400 East Polk StreetWashington, IA 52353 · Washington County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 52353 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

$81.84 typical visit price

range $52.96 – $161.40

Typical copayment $20.46 (range $13.24 – $40.35)

Most-billed visit code 99203

Established Patient

$94.05 typical visit price

range $16.91 – $131.98

Typical copayment $23.51 (range $4.22 – $32.99)

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.

Referred Medical Equipment & Supplies CMS DME claims 31

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224

DME-Other DME · category DE017N

5 suppliers29 claims331 services$17.41 avg. paid by Medicare

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225

DME-Other DME · category DE017N

5 suppliers27 claims620 services$2.38 avg. paid by Medicare

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

10 suppliers70 claims133 services$5.60 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

5 suppliers30 claims30 services$0.94 avg. paid by Medicare

Insertion tray with drainage bag with indwelling catheter, foley type, two-way, all silicone A4315

DME-Orthotic Devices · category DF000N

1 supplier11 claims11 services$23.12 avg. paid by Medicare

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357

DME-Orthotic Devices · category DF000N

2 suppliers23 claims23 services$8.04 avg. paid by Medicare

Urinary drainage bag, leg or abdomen, vinyl, with or without tube, with straps, each A4358

DME-Orthotic Devices · category DF000N

2 suppliers17 claims33 services$4.78 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

7 suppliers12 claims12 services$35.70 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

8 suppliers28 claims28 services$96.66 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

7 suppliers24 claims62 services$35.02 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

11 suppliers39 claims222 services$19.19 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

10 suppliers48 claims48 services$58.64 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

11 suppliers49 claims49 services$20.22 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

7 suppliers49 claims49 services$16.46 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

11 suppliers64 claims361 services$2.40 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

5 suppliers16 claims16 services$7.16 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

10 suppliers25 claims25 services$12.21 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers17 claims17 services$18.01 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

1 supplier36 claims36 services$872.29 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

2 suppliers17 claims17 services$15.36 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

5 suppliers81 claims81 services$37.02 avg. paid by Medicare

Wheelchair accessory, manual swingaway, retractable or removable mounting hardware for joystick, other control interface or positioning accessory E1028

DME-Wheelchairs · category DD021N

1 supplier16 claims16 services$9.37 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

4 suppliers201 claims201 services$93.95 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

3 suppliers119 claims119 services$34.66 avg. paid by Medicare

Insulin for administration through dme (i.e., insulin pump) per 50 units J1817

Treatment-Injections and Infusions (nononcologic) · category RI000N

1 supplier45 claims3,560 services$7.11 avg. paid by Medicare

Formoterol fumarate, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 20 micrograms J7606

DME-Drugs Administered Through DME · category DG006N

2 suppliers17 claims1,020 services$6.66 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

3 suppliers30 claims3,527 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

4 suppliers38 claims3,300 services$0.10 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

2 suppliers15 claims900 services$0.75 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

10 suppliers160 claims160 services$178.14 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

5 suppliers52 claims52 services$23.53 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

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

DR. RYAN ANDREW FLANNERY M.D.

Family Medicine

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

DR. MATTHEW JOHN PRIHODA M.D.

Family Medicine

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

TYLER AMNIE BAYLISS MSN, RN, FNP-C

Nurse Practitioner (Family)

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

AMANDA C KLEESE ARNP

Nurse Practitioner

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

WASHINGTON COUNTY HOSPITAL

Clinic/Center (Rural Health)

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

DR. TREVOR R. MARTIN D.O.

Family Medicine

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

DEBBIE L GIBBS M.D.

Family Medicine

1230 S IOWA AVE
WASHINGTON, IA 52353

Washington County (319) 653-7291

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 George Nacos's NPI number?

The NPI number for George Nacos is 1235159716. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is George Nacos located?

George Nacos practices at 1230 S Iowa Ave, Washington, IA 52353. The listed phone number is (319) 653-7291.

What is George Nacos's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is George Nacos enrolled in Medicare?

Yes. George Nacos 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.

Which organization bills Medicare for George Nacos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Nacos reassigns Medicare benefits to Washington County Hospital (Washington, IA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for George Nacos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does George Nacos accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Insurance Company and 1 other insurer list George Nacos 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.

Is George Nacos affiliated with any hospitals?

According to CMS data, George Nacos is affiliated with Washington County Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for George Nacos was last updated on May 6, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.