LARA CHAMBERLAIN ATWATER M.D.
NPI 1366718116
Orthopaedic Surgery - Foot and Ankle Surgery in Portland, OR

Q: What is Lara Atwater's NPI number?

The NPI number for Lara Atwater is 1366718116. It was assigned to this individual provider in the NPPES registry on March 27, 2012.

Q: What is Lara Atwater's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Q: When was this NPI record last updated?

The NPPES record for Lara Atwater was last updated on November 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 March 27, 2012PECOS EnrolledAccepts Medicare Assignment

93.57/100

CMS Quality Rating

3181 SW SAM JACKSON PARK RD # OP31, PORTLAND, OR 97239(808) 391-4667 Get Directions Write a Review

NPPES record last updated: November 12, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 12, 2019, Oct 15, 2019, Jun 26, 2018 and 1 more (4 updates tracked since 2018).

On this page

About Lara Chamberlain Atwater M.d. NPPES

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

LARA CHAMBERLAIN ATWATER M.D. (NPI 1366718116) is an individual foot and ankle surgery provider in Portland, Oregon, licensed in Oregon (MD192938) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and is a graduate of Georgetown University School Of Medicine (2012).

NPPES Registry Identity

NPI1366718116

Entity TypeIndividualFemale

Primary Taxonomy207XX0004X

Provider Legal NameLARA CHAMBERLAIN ATWATERCredential: M.D.

Location Address3181 SW SAM JACKSON PARK RD # OP31Portland, OR 97239-3011

Mailing Address3181 Sw Sam Jackson Park Rd # Op31Portland, OR 97239-3011 · (808) 391-4667

Phone(808) 391-4667

Sole ProprietorNo

Medical School CMSGeorgetown University School Of MedicineGraduated 2012

Enumeration DateMarch 27, 2012

Last NPPES UpdateNovember 12, 20194 updates tracked since enumeration

✔ NPI 1366718116 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Foot and Ankle SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XX0004X

Licenses✔ Licensed in OR · MD192938✔ Licensed in MD · D0085556

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, foot and ankle surgeons deal with adult reconstructive foot and ankle surgery, adult foot and ankle trauma, sports medicine foot and ankle, and children's foot and ankle reconstructive surgery.

3181 SW SAM JACKSON PARK RD # OP31, Portland, OR 97239

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans 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

Lara Chamberlain Atwater 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 ID9335397975

PECOS Enrollment IDI20190918000759

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 Lara Atwater reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Professional Services

Same address

Multi-Specialty

707 SW GAINES ST
Portland, OR 97239

Reassigned Medicare billing, Oregon enrollment
2,212 clinicians in this Medicare group

NPI 1073767588 (503) 494-9000

Tuality Medical Group LLC

14 mi

Neurology

364 SE 8TH AVE STE 101
Hillsboro, OR 97123

Reassigned Medicare billing, Oregon enrollment
691 clinicians in this Medicare group

NPI 1639690704 (503) 681-1000

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 7

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.

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.

67 services53 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

31 services20 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

26 services26 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.

26 services25 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

21 services14 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

17 services15 patients

Hospital Affiliations CMS Care Compare 2

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

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number380009

Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County

Emergency services Birthing friendly

Hillsboro Medical Center

Acute Care Hospitals · Hillsboro, OR

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380021

Location335 SE 8th AvenueHillsboro, OR 97123 · Washington County

Emergency services Birthing friendly

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.

93.57/100

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

Scored as part of a group practice

Quality

85.33

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 5

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

MR. NATHAN WADE FENNEWALD PA-C

Physician Assistant

3181 SW SAM JACKSON PARK RD # OP31, ORTHOPEDICS & REHABILITATION DEPARTMENT
PORTLAND, OR 97239

Multnomah County (636) 688-9260

DR. CLIFFORD LIN BSC, MD, MASC, FRCSC

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

3181 SW SAM JACKSON PARK RD # OP31
PORTLAND, OR 97239

Multnomah County (503) 494-6316

MR. SOURABH MUKHERJEE MD

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

3181 SW SAM JACKSON PARK RD # OP31
PORTLAND, OR 97239

Multnomah County (503) 418-9888

SHANNON M. GODDARD PA

Physician Assistant (Medical)

3181 SW SAM JACKSON PARK RD # OP31
PORTLAND, OR 97239

Multnomah County (503) 494-6400

DR. JONATHAN A. KARK MD

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

3181 SW SAM JACKSON PARK RD # OP31
PORTLAND, OR 97239

Multnomah County (503) 418-8993

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 Lara Atwater's NPI number?

The NPI number for Lara Atwater is 1366718116. It was assigned to this individual provider in the NPPES registry on March 27, 2012.

Where is Lara Atwater located?

Lara Atwater practices at 3181 SW Sam Jackson Park Rd # Op31, Portland, OR 97239. The listed phone number is (808) 391-4667.

What is Lara Atwater's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Is Lara Atwater enrolled in Medicare?

Yes. Lara Atwater 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 organizations bill Medicare for Lara Atwater's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lara Atwater reassigns Medicare benefits to 2 organizations: University Professional Services (Portland, OR) and Tuality Medical Group LLC (Hillsboro, OR). Each 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 Lara Atwater's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lara Atwater accept?

Health plans from Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Lara Atwater 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 Lara Atwater affiliated with any hospitals?

According to CMS data, Lara Atwater is affiliated with Ohsu Hospital And Clinics and Hillsboro Medical Center.

When was this NPI record last updated?

The NPPES record for Lara Atwater was last updated on November 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.