DR. RYAN CONWAY WASSENAAR D.O.
NPI 1457516288
Hospitalist in Oak Ridge, TN

Q: What is Ryan Wassenaar's NPI number?

The NPI number for Ryan Wassenaar is 1457516288. It was assigned to this individual provider in the NPPES registry on July 21, 2008.

Q: What is Ryan Wassenaar's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Ryan Wassenaar was last updated on August 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 21, 2008PECOS EnrolledAccepts Medicare Assignment

87.95/100

CMS Quality Rating

990 OAK RIDGE TPKE, OAK RIDGE, TN 37830(865) 835-4304(865) 835-4303 Get Directions Write a Review

NPPES record last updated: August 29, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Ryan Conway Wassenaar D.o. NPPES

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

DR. RYAN CONWAY WASSENAAR D.O. (NPI 1457516288) is an individual hospitalist provider in Oak Ridge, Tennessee, licensed in Tennessee (2067) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Globe, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2009).

NPPES Registry Identity

NPI1457516288

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameDR. RYAN CONWAY WASSENAARCredential: D.O.

Location Address990 OAK RIDGE TPKEOak Ridge, TN 37830-6976

Mailing Address119 Heritage DrOak Ridge, TN 37830-7965 · (865) 804-1902

Phone(865) 835-4304

Fax(865) 835-4303

Sole ProprietorYes

Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2009

Enumeration DateJuly 21, 2008

Last NPPES UpdateAugust 29, 2023

NPPES CertifiedAugust 29, 2023

✔ NPI 1457516288 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in TN · 2067

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 007164 (AZ)

990 OAK RIDGE TPKE, Oak Ridge, TN 37830

Open in Google Maps ↗

Secondary Practice Location 1

Location 15880 S Hospital DrGlobe, AZ 85501-9447 · Phone (928) 425-3261 · Fax (866) 368-6349

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc..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

Dr. Ryan Conway Wassenaar D.o. 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 ID749334357

PECOS Enrollment IDI20170309002700

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 3

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.

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.

150 services147 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

114 services113 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37830 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

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

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.

87.95/100

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

Scored through an Alternative Payment Model

Quality

74.04

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

100%255 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

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

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

DME-Oxygen and Supplies · category DC000N

6 suppliers45 claims45 services$18.93 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 supplier16 claims16 services$921.40 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

6 suppliers45 claims45 services$102.68 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.

MRS. LAUREN WALRAVEN HOWELL R.D.

Dietitian, Registered

990 OAK RIDGE TPKE, FOOD AND NUTRITION SERVICES
OAK RIDGE, TN 37830

Anderson County (865) 835-4109

CHUKWUMA UMUNAKWE M.D.

Emergency Medicine