Are you William Seid, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 12255 Fair Lakes Pkwy, Kaiser Permanente Fair Oaks Medical Center, Fairfax, VA 22033
About Dr. Seid
Based in Fairfax, VA, William Seid, M.D. is listed in the NPI registry under colon & rectal surgery. According to Medicare claims data, the services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1174563233 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (703) 934-5770
- Email not available
Practice Locations
12255 FAIR LAKES PKWY KAISER PERMANENTE FAIR OAKS MEDICAL CENTER
Fairfax, VA 22033
Procedures Most Often Billed to Medicare
12 services · 11 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
12 | Less often than most peers in Colon & Rectal Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What kind of doctor is William Seid?
William Seid is a colorectal surgeon in Fairfax, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
What is William Seid's address?
William Seid is listed at 12255 Fair Lakes Pkwy Kaiser Permanente Fair Oaks Medical Center, Fairfax, VA 22033. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with William Seid?
The number on file is (703) 934-5770. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for William Seid?
William Seid's National Provider Identifier is 1174563233. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does William Seid have?
William Seid has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does William Seid perform?
According to Medicare billing data, William Seid the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is William Seid's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William Seid. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.