WILLIAM ANDREW PARKER D.O.
NPI 1790946333
Internal Medicine - Critical Care Medicine in Columbia, MO

Q: What is William Parker's NPI number?

The NPI number for William Parker is 1790946333. It was assigned to this individual provider in the NPPES registry on June 17, 2008.

Q: What is William Parker'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 William Parker was last updated on April 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 June 17, 2008PECOS Enrolled

100/100

CMS Quality Rating

1 HOSPITAL DR, COLUMBIA, MO 65212(573) 882-8788(573) 884-4892 Get Directions Write a Review

NPPES record last updated: April 18, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 2, 2022, Jun 10, 2020 (2 updates tracked since 2020).

On this page

About William Andrew Parker D.o. NPPES

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

WILLIAM ANDREW PARKER D.O. (NPI 1790946333) is an individual critical care medicine provider in Columbia, Missouri, licensed in Missouri (2009026502) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and maintains a secondary practice location in Jefferson City.

NPPES Registry Identity

NPI1790946333

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameWILLIAM ANDREW PARKERCredential: D.O.

Location Address1 HOSPITAL DRColumbia, MO 65212-0001

Mailing AddressPo Box 843966Kansas City, MO 64184-3966 · (573) 884-3300 · Fax (573) 884-0943

Phone(573) 882-8788

Fax(573) 884-4892

Sole ProprietorNo

Enumeration DateJune 17, 2008

Last NPPES UpdateApril 18, 20232 updates tracked since enumeration

NPPES CertifiedApril 18, 2023

✔ NPI 1790946333 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in MO · 2009026502

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 Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 2009026502 (MO)

1 HOSPITAL DR, Columbia, MO 65212

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Secondary Practice Location 1

Location 11125 Madison StJefferson City, MO 65101-5227 · Phone (573) 634-2620 · Fax (573) 634-2033

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Andrew Parker D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 William Parker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Curators Of The University Of Missouri

Same address

Multi-Specialty

1 HOSPITAL DR
Columbia, MO 65212

Reassigned Medicare billing, Missouri enrollment
1,395 clinicians in this Medicare group

NPI 1235126921 (573) 882-4141

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 65212 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

$121.96 typical visit price

range $52.28 – $161.24

Typical copayment $30.49 (range $13.07 – $40.31)

Most-billed visit code 99204

Established Patient

$93.24 typical visit price

range $16.30 – $131.05

Typical copayment $23.31 (range $4.07 – $32.76)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 26

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

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

DME-Other DME · category DE001N

3 suppliers45 claims45 services$38.90 avg. paid by Medicare

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

DME-Other DME · category DE001N

6 suppliers33 claims33 services$95.24 avg. paid by Medicare

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

DME-Other DME · category DE001N

6 suppliers32 claims85 services$37.26 avg. paid by Medicare

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

DME-Other DME · category DE001N

3 suppliers41 claims226 services$20.06 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

5 suppliers22 claims115 services$14.92 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

7 suppliers67 claims67 services$60.75 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

7 suppliers51 claims51 services$20.43 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

7 suppliers44 claims44 services$17.40 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

7 suppliers88 claims480 services$2.47 avg. paid by Medicare

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

DME-Other DME · category DE001N

6 suppliers40 claims40 services$12.46 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

5 suppliers108 claims108 services$19.75 avg. paid by Medicare

Stationary oxygen contents, liquid, 1 month's supply = 1 unit E0442

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims12 services$49.67 avg. paid by Medicare

Portable oxygen contents, liquid, 1 month's supply = 1 unit E0444

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims12 services$47.00 avg. paid by Medicare

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

DME-Other DME · category DE005N

4 suppliers50 claims50 services$844.42 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

5 suppliers21 claims21 services$16.14 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers31 claims31 services$6.84 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

7 suppliers86 claims86 services$42.57 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

7 suppliers366 claims371 services$97.51 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

4 suppliers169 claims169 services$34.22 avg. paid by Medicare

Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms J7605

DME-Drugs Administered Through DME · category DG006N

3 suppliers16 claims960 services$4.90 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

1 supplier12 claims720 services$6.60 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

11 suppliers45 claims14,195 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

5 suppliers19 claims2,300 services$0.09 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

7 suppliers32 claims2,064 services$0.82 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier30 claims30 services$35.42 avg. paid by Medicare

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

DME-Other DME · category DE000N

15 suppliers85 claims85 services$24.80 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 20

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

DR. RAHUL JAIN M.D.

Internal Medicine (Clinical Cardiac Electrophysiology)

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 884-2296

MR. GHULAM GHOUS M.D

Internal Medicine (Hematology & Oncology)

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 884-9066

RYLEE SHAWN DUCKWORTH M.D.

Emergency Medicine

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 884-4400

RYAN DANIEL MONTGOMERY M.D.

Anesthesiology

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 882-2568

MS. MORGAN L LEWIS PA

Physician Assistant

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 882-8091

ALONA KATZIR MD

Orthopaedic Surgery (Orthopaedic Trauma)

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 882-2663

ASHRAF NAYEF MOSLEH ALSAWAREAH MD

Psychiatry & Neurology (Neurology)

1 HOSPITAL DR
COLUMBIA, MO 65212

Boone County (573) 882-5092

DR. OLEKSIY MYKHAYLOVYCH ZYERNOV M.D.

Anesthesiology

1 HOSPITAL DR, DC056.20
COLUMBIA, MO 65212

Boone County (573) 882-2568

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 William Parker's NPI number?

The NPI number for William Parker is 1790946333. It was assigned to this individual provider in the NPPES registry on June 17, 2008.

Where is William Parker located?

William Parker practices at 1 Hospital Dr, Columbia, MO 65212. The listed phone number is (573) 882-8788.

What is William Parker's specialty?

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

Is William Parker enrolled in Medicare?

Yes. William Parker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Parker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Parker reassigns Medicare benefits to The Curators Of The University Of Missouri (Columbia, MO). 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 William Parker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Parker was last updated on April 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.