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Edit this profileAt a glance
- 1798 N Garey Ave, Pomona, CA 91767
About Mark Dalen
Listed in the NPI registry as a physician assistant, Mark Dalen practices in Pomona, CA. According to Medicare claims data, the services billed most often include emergency department visit with high level of medical decision making. NPI 1437837598 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
- (909) 865-9500
- Email not available
Practice Locations
1798 N GAREY AVE
Pomona, CA 91767
Procedures Most Often Billed to Medicare
12 services · 11 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
12 | Less often than most peers in Physician Assistant |
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 physician assistants at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 — 7 related providers in 1 group
Common questions
What does Mark Dalen specialize in?
Mark Dalen is a physician assistant in Pomona, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mark Dalen located?
Mark Dalen is listed at 1798 N Garey Ave, Pomona, CA 91767. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark Dalen's phone number?
The number on file is (909) 865-9500. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark Dalen's NPI number?
Mark Dalen's National Provider Identifier is 1437837598. 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 Mark Dalen been practicing?
Mark Dalen has 3+ years experience. Registered with an NPI since 2023. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Mark Dalen do most often?
According to Medicare billing data, Mark Dalen 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
Has Mark Dalen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark Dalen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.