Mark Dalen
NPI 1437837598 · Physician Assistant · Pomona, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dalen is a Physician Assistant provider in Pomona, CA (NPI 1437837598).
Provider details
- NPI number
- 1437837598
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Physician Assistant363A00000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
2 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
12 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 12 | $146 |
Typical Medicare-allowed amounts for these services range $146–$146 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 67 | 66 |
| Cefdinir | 51 | 49 |
| Diazepam | 51 | 51 |
| Promethazine Hcl | 49 | 49 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 30 | 30 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 24 | 24 |
| Doxycycline Monohydrate | 16 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$80 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-07-10
- Last updated
- 2024-04-01
- Certified
- 2024-04-01
Frequently asked questions
- What is Mark Dalen's NPI number?
- Mark Dalen's National Provider Identifier (NPI) is 1437837598, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dalen's specialty?
- Mark Dalen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Dalen located?
- Mark Dalen's practice location on file with NPPES is 1798 N Garey Ave, Pomona, CA 91767-2918.
- What is Mark Dalen's phone number?
- The practice phone number listed in the NPPES registry for Mark Dalen is (909) 865-9500.
- Does Mark Dalen accept Medicare?
- Mark Dalen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dalen's NPI active?
- Yes — Mark Dalen's NPI (1437837598) is active in the NPPES registry as of the last update on 2024-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.