DR. LARK GREENWALD GUSS M.D.
NPI 1275973398
Dermatology - MOHS-Micrographic Surgery in Spokane, WA

Active since July 03, 2013PECOS EnrolledAccepts Medicare Assignment
510 S COWLEY ST STE 200, SPOKANE, WA 99202(509) 456-8444(509) 455-9227 Get Directions Write a Review

NPPES record last updated: January 16, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 8, 2021, Oct 4, 2019, Jun 28, 2017 (3 updates tracked since 2017).

About Dr. Lark Greenwald Guss M.d. NPPES

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

DR. LARK GREENWALD GUSS M.D. (NPI 1275973398) is an individual mohs-micrographic surgery provider in Spokane, Washington, licensed in Washington (MD60840220) and active in the NPI registry since July 2013. She is enrolled in Medicare PECOS, is affiliated with Deaconess Medical Center, and is a graduate of Johns Hopkins University School Of Medicine (2013).

NPPES Registry Identity

NPI1275973398
Entity TypeIndividualFemale
Primary Taxonomy207ND0101X
Provider Legal NameDR. LARK GREENWALD GUSSCredential: M.D.
Location Address510 S COWLEY ST STE 200Spokane, WA 99202-1332
Mailing Address510 S Cowley StSpokane, WA 99202-1332 · (509) 456-8444
Fax(509) 455-9227
Sole ProprietorNo
Medical School CMSJohns Hopkins University School Of MedicineGraduated 2013
Enumeration DateJuly 3, 2013
Last NPPES UpdateJanuary 16, 20243 updates tracked since enumeration
NPPES CertifiedJanuary 16, 2024
✔ NPI 1275973398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDermatology · MOHS-Micrographic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207ND0101X
License✔ Licensed in WA · MD60840220
Definition
The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S.
Also ListedDermatologyTaxonomy 207N00000X · License 79073 (MT), 148774 (CA)
510 S COWLEY ST STE 200, Spokane, WA 99202

Other Names 1

Former Name (1)Lark Julie Greenwald

Accepted 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. Lark Greenwald Guss 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 ID2163646605
PECOS Enrollment IDI20180702002073
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

2

Medicare enrollment records show Lark Guss reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dermatology
510 S COWLEY ST STE 200
Spokane, WA 99202
  • Reassigned Medicare billing, Washington enrollment
  • 5 clinicians in this Medicare group
Dermatology
1433 5TH ST
Clarkston, WA 99403
  • Reassigned Medicare billing, Washington enrollment
  • 5 clinicians in this Medicare group

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 25

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.

Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks 17311
This procedure involves the careful removal of a growth from the head, neck, hands, or feet. The removed tissue, divided into 1-5 blocks, is then examined under a microscope to study its characteristics and determine the nature of the growth.
407 services336 patients
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks 17312
This procedure involves the careful removal of abnormal growths from the head, neck, hands, or feet. The removed tissues, divided into 1-5 blocks, are then examined under a microscope to identify any irregularities. The process may be carried out in multiple stages for thorough examination.
222 services161 patients
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm 12032
This procedure involves the repair of a wound between 2.6-7.5 cm located on the scalp, underarms, trunk, arms, or legs. The process includes cleaning, debridement (removal of damaged tissue), and suturing (stitching) of the wound to promote healing.
98 services96 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.
86 services56 patients
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm 12052
This procedure involves repairing a wound on the face, ears, eyelids, nose, lips, or mouth that measures between 2.6-5.0 cm. The process includes cleaning, suturing if necessary, and dressing the wound to promote healing and prevent infection.
75 services71 patients
Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
65 services22 patients

Hospital Affiliations CMS Care Compare

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

Deaconess Medical Center

Acute Care Hospitals · Spokane, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500044
LocationW 800 Fifth AvenueSpokane, WA 99210 · Spokane County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99202 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
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 7

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

Physician Assistant
510 S COWLEY ST STE 200
SPOKANE, WA 99202
Physician Assistant
510 S COWLEY ST STE 200
SPOKANE, WA 99202
Dermatology
510 S COWLEY ST STE 200
SPOKANE, WA 99202
Dermatology
510 S COWLEY ST STE 200
SPOKANE, WA 99202
Physician Assistant
510 S COWLEY ST STE 200
SPOKANE, WA 99202
Dermatology
510 S COWLEY ST STE 200
SPOKANE, WA 99202
Dermatology
510 S COWLEY ST STE 200
SPOKANE, WA 99202

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 Lark Guss's NPI number?

The NPI number for Lark Guss is 1275973398. It was assigned to this individual provider in the NPPES registry on July 3, 2013. The provider is also known as Lark Julie Greenwald.

Where is Lark Guss located?

Lark Guss practices at 510 S Cowley St Ste 200, Spokane, WA 99202. The listed phone number is (509) 456-8444.

What is Lark Guss's specialty?

The primary specialty registered for this NPI is Dermatology, specializing in MOHS-Micrographic Surgery, with taxonomy code 207ND0101X.

Is Lark Guss enrolled in Medicare?

Yes. Lark Guss 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 Lark Guss's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lark Guss reassigns Medicare benefits to 2 organizations: Dermatology Specialists Of Spokane (Spokane, WA) and (Clarkston, WA). 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 Lark Guss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lark Guss accept?

Health plans from Ambetter Health, Molina Healthcare, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Lark Guss 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 Lark Guss affiliated with any hospitals?

According to CMS data, Lark Guss is affiliated with Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for Lark Guss was last updated on January 16, 2024. 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.