NPPES file of Aug 9, 2026

Lark Greenwald Guss, M.D.

MOHS-Micrographic Surgery Physician · Spokane, WA

Lark Greenwald Guss, M.D. is a mohs-micrographic surgery physician with a practice address in Spokane, Washington, and NPI 1275973398, issued on Jul 3, 2013. Check the license (Washington MD60840220, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275973398
Name
Lark Greenwald Guss
Credential
M.D.
Primary taxonomy
MOHS-Micrographic Surgery Physician 207ND0101X
License numbers
MD60840220 WA
148774 CA
79073 MT
Self-reported in NPPES; status is on the state search
Practice location
510 S Cowley St Ste 200, Spokane, WA 99202
Phone
(509) 456-8444
Enumerated
Jul 3, 2013
Record last updated
Jan 16, 2024
Fax
(509) 455-9227
Medicare enrollment
Enrolled (PECOS I20180702002073); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 510 S Cowley St Ste 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amanda Grecu, PA-CPhysician Assistant1164896338
  2. Ashley LundgrenDermatology Physician1942695192
  3. Katherine Reed, M.D.Dermatology Physician1396919569
  4. Brittany UrsoDermatology Physician1427545433

Verify Lark Greenwald Guss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60840220
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

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83% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024

99 Medicare Part D claims for 69 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Lark Guss99
  2. Specialty average570

Most prescribed

  1. Doxycycline Hyclate21 claims
  2. Mupirocin13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $133.13

6 payments; by number, the most common kind was food and beverage; the largest payer was Dermavant Sciences, Inc. The 1,074 providers of this specialty with any payment received $4,075.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lark Guss$133.13
  2. Specialty average$4,075.23

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dermatology Specialists OF SpokaneSpokane, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lark Greenwald Guss among 46 mohs-micrographic surgery physician records in Washington

Lark Greenwald Guss, M.D. is one of 46 mohs-micrographic surgery physician records with a practice address in Washington. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.

  • NPI issued2013 · 76% of these records are older, 22% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 85% of these records are
  • Graduated2013 · median 2008 among the 39 with a school on file
  • Record last updated2024 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

MOHS-Micrographic Surgery Physician providers in Washington

There are 46 mohs-micrographic surgery physician records in Washington.

The 8 mohs-micrographic surgery physician records with the nearest ZIP codes

  1. John Nia, M.D.Spokane, WA 992021396155297
  2. Chadd Sukut, MDSpokane Valley, WA 992121467673061
  3. Jeremy Peck, M.D., PH.D.Richland, WA 993521457514689
  4. Kirk Ecklund, MDYakima, WA 989021154432904
  5. Phillip Hochwalt, M.D.Wenatchee, WA 988011598992737
  6. Mikel Muse, DOVancouver, WA 986861639639339
  7. Seth MartinOlympia, WA 985061801355862
  8. Jacob Bauer, M.D.Olympia, WA 985021407029762

Common questions

What is Lark Greenwald Guss, M.D.'s NPI number?

Lark Greenwald Guss, M.D.'s National Provider Identifier (NPI) is 1275973398, issued on Jul 3, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Lark Greenwald Guss, M.D. located?

The NPPES record lists a practice address at 510 S Cowley St Ste 200, Spokane, WA, 99202. Phone: (509) 456-8444. Providers update this record themselves, so call before visiting.

How can I verify Lark Greenwald Guss, M.D.'s license?

NPPES lists Washington license number MD60840220, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lark Greenwald Guss, M.D. prescribe under Medicare Part D?

In 2024, Lark Greenwald Guss, M.D. had 99 Medicare Part D claims for 69 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.