DR. MARLENE PENG (MD) – Allergy Physician, NPI 1770697112
Allergy Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
94 ALLERGY/IMMUNOLOGY in WA
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Provider Addresses for DR. MARLENE PENG (MD)
515, Minor Avenue, First Hill, Seattle, King County, Washington, 98104, United States
SEATTLE, WA 981042120
Phone: (206) 386-9500
Fax: (206) 576-3802
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-12-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20091201000115 | I | Allergy/Immunology | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 1,040 | 31 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 36 | 36 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 27 | 19 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 98104)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ALLERGY/IMMUNOLOGY | WA | 95004 | Injection of allergenic extracts into skin, accessed through the skin | 765 | 23 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| General Surgery | WA | |
| Orthopedic Surgery | WA | |
| P S Y C H I A T R Y | WA | |
| Hospitalist, Hospice/Palliative Care, Internal Medicine | WA | |
| Hospitalist, Hospice/Palliative Care | WA | |
| Physician Assistant | WA | |
| N E U R O L O G Y | WA | |
| N E U R O L O G Y | WA | |
| Hospitalist, Hospice/Palliative Care, Internal Medicine | ND |
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