NPPES file of Aug 9, 2026

Nancy Lynn Gum, D.D.S., M.S.D.

Orthodontics and Dentofacial Orthopedics Dentistry · San Jose, CA

Nancy Lynn Gum, D.D.S., M.S.D. is an orthodontics and dentofacial orthopedics dentistry with a practice address in San Jose, California, and NPI 1639279334, issued on Sep 22, 2006. Check the license (California 34707, as entered in NPPES) with the California board that licenses this profession; 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
1639279334
Name
Nancy Lynn Gum
Credential
D.D.S., M.S.D.
Primary taxonomy
Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
License number
34707 CA
Self-reported in NPPES; status is on the state search
Practice location
1688 Willow St, San Jose, CA 95125
Phone
(408) 269-3436
Enumerated
Sep 22, 2006
Record last updated
Nov 1, 2024
Fax
(408) 269-3466
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest orthodontics and dentofacial orthopedics dentistry records → All 1,881 in California → Look up another NPI →

Also registered at 1688 Willow St

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

  1. Kyong-Mee Kim, M.D.Pediatric Cardiology Physician1588636203
  2. Douglas Roth, D.D.S.General Practice Dentistry1306938246
  3. Sherry SuNaturopath1003368838
  4. Siu Wang, L.AC.Acupuncturist1427258359
  5. Theresa Williamson, PTPhysical Therapist1558344341

Verify Nancy Lynn Gum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 34707    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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $8,580.62

6 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, Inc. The 7,622 providers of this specialty with any payment received $1,641.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nancy Gum$8,580.62
  2. Specialty average$1,641.73

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

Nancy Lynn Gum among 1,881 orthodontics and dentofacial orthopedics dentistry records in California

Nancy Lynn Gum, D.D.S., M.S.D. is one of 1,881 orthodontics and dentofacial orthopedics dentistry records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 78% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2024 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthodontics and Dentofacial Orthopedics Dentistry providers in California

There are 1,881 orthodontics and dentofacial orthopedics dentistry records in California.

All 1,881 in California → Every provider in San Jose → Orthodontics and Dentofacial Orthopedics Dentistry nationwide →

The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes

  1. Kamran Mashouf, DDSSan Jose, CA 951251710173497
  2. Kayhan Mashouf, DMDSan Jose, CA 951251124402177
  3. Esther Moon, DDSSan Jose, CA 951251467854257
  4. Erinn Chang, DDSSan Jose, CA 951241134005168
  5. Earl Haller, DDS MSSan Jose, CA 951241316014376
  6. Arden Hu, DDSSan Jose, CA 951241851231443
  7. Rick Jow, D.D.S., M.S.San Jose, CA 951241639376114
  8. Michael Stepovich, DDS, MSSan Jose, CA 951241972801587

Common questions

What is Nancy Lynn Gum, D.D.S., M.S.D.'s NPI number?

Nancy Lynn Gum, D.D.S., M.S.D.'s National Provider Identifier (NPI) is 1639279334, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Lynn Gum, D.D.S., M.S.D. located?

The NPPES record lists a practice address at 1688 Willow St, San Jose, CA, 95125. Phone: (408) 269-3436. Providers update this record themselves, so call before visiting.

How can I verify Nancy Lynn Gum, D.D.S., M.S.D.'s license?

NPPES lists California license number 34707, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.