NPPES file of Aug 9, 2026

Isaac So, DDS

Oral and Maxillofacial Surgery (Dentist) · Fairfax, VA

Isaac So, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Fairfax, Virginia, and NPI 1306424304, issued on Mar 31, 2021. Check the license (Virginia 0438000553, as entered in NPPES) with the Virginia 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
1306424304
Name
Isaac So
Credential
DDS
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License numbers
0438000553 VA
0401419807 VA
Self-reported in NPPES; status is on the state search
Practice location
4210 Fairfax Corner Ave W Ste 215, Fairfax, VA 22030
Phone
(703) 263-8640
Enumerated
Mar 31, 2021
Record last updated
Jul 6, 2026
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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Verify Isaac So in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Virginia board licenses this profession
    Search for license 0438000553
    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
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63% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

152 Medicare Part D claims for 64 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 32 claims were for opioids.

  1. Isaac So152
  2. Specialty average406

Most prescribed

  1. Chlorhexidine Gluconate59 claims
  2. Oxycodone Hcl29 claims
  3. Ibuprofen28 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.

Isaac So among 256 oral and maxillofacial surgery (dentist) records in Virginia

Isaac So, DDS is one of 256 oral and maxillofacial surgery (dentist) records with a practice address in Virginia. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.

  • NPI issued2021 · 92% of these records are older, 5% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral and Maxillofacial Surgery (Dentist) providers in Virginia

There are 256 oral and maxillofacial surgery (dentist) records in Virginia.

The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes

  1. Ashkan Davary Dowlatabady, MD, DDSFairfax, VA 220301801275995
  2. Patrick Dolan, D.D.S.Fairfax, VA 220301760406805
  3. Patrick Friend, DDSFairfax, VA 220301831418714
  4. Jeffrey Lane, D.D.S.Fairfax, VA 220301346263134
  5. Emily Norton, DMDFairfax, VA 220301295391183
  6. Jonathan Park, D.M.D.,M.D.Fairfax, VA 220301114940905
  7. Cyrus Ramsey, DMD MDFairfax, VA 220301831399096
  8. Kimberly Silloway, D.D.S.Fairfax, VA 220301790795466

Common questions

What is Isaac So, DDS's NPI number?

Isaac So, DDS's National Provider Identifier (NPI) is 1306424304, issued on Mar 31, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Isaac So, DDS located?

The NPPES record lists a practice address at 4210 Fairfax Corner Ave W Ste 215, Fairfax, VA, 22030. Phone: (703) 263-8640. Providers update this record themselves, so call before visiting.

How can I verify Isaac So, DDS's license?

NPPES lists Virginia license number 0438000553, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.

How much does Isaac So, DDS prescribe under Medicare Part D?

In 2024, Isaac So, DDS had 152 Medicare Part D claims for 64 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.