Physician Profile
Unclaimed ProfileAbout SLACK
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Areas of Expertise
Common questions
What is Dr. Slack's specialty?
Dr. Slack is an anesthesiologist in Manassas, VA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Anesthesiology”.
NPI registry
Where can I find Dr. Slack?
Dr. Slack is listed at 8700 SUDLEY RD, Manassas, VA 20110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Slack?
The number on file is (703) 369-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Slack's NPI number?
Dr. Slack's National Provider Identifier is 1679508618. 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 long has Dr. Slack been practising?
Dr. Slack 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 practised for longer than this.
NPI registry
What is Dr. Slack known for?
According to Medicare billing data, Dr. Slack provides treatments such as anesthesia for other procedure on large bowel using an endoscope and anesthesia for lens surgery. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Slack confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Slack. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (703) 369-8000
- Email not available
Practice Locations
8700 SUDLEY RD
Manassas, VA 20110
Procedures Most Often Billed to Medicare
47 services · 47 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for other procedure on large bowel using an endoscope | Anaesthesia | 00811 |
16 |
| Anesthesia for lens surgery | Anaesthesia | 00142 |
16 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | Anaesthesia | 00731 |
15 |
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.
Other anesthesiologists at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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.
More connections — 11 related providers in 2 groups
Other anesthesiologists in Manassas 4
Same specialty, same city.
Also performs Anesthesia for other procedure on large bowel using an endoscope 7
Providers in VA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.