MARIA M. MERCADO (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1851335723
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,058 INTERNAL MEDICINE in WA
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Provider Addresses for MARIA M. MERCADO (M.D.)
Building 5 Medical Pavilion, 1231, 116th Avenue Northeast, Midlakes, Bellevue, King County, Washington, 98004, United States
SUITE 400
BELLEVUE, WA 98004
Phone: (425) 688-5670
Fax: (425) 688-5670
Type: Location
Aki Kurose Middle School, 3928, South Graham Street, Brighton, Rainier Valley, Seattle, King County, Washington, 98118, United States
PO BOX 3947
SEATTLE, WA 981243947
Phone: (425) 467-3655
Fax: (425) 635-6388
Type: Mailing
880 3RD AVE
CHULA VISTA, CA 919111305
Phone: (619) 205-4585
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 96 Open Payments records for all available years, with a total value of $2,886.
Total Amount is formed as General ($2,886) + Research ($0) + Ownership ($0) = $2,886.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Novo Nordisk Inc ($479).
Total Amount
$2,886
General + Research + Ownership
Payments
96
Total payment records
General Amount
$2,886
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $479 |
| Tandem Diabetes Care, Inc. | $405 |
| Lilly USA, LLC | $330 |
| Medtronic, Inc. | $191 |
| BETA BIONICS, INC. | $170 |
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: 2012-11-27
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 |
|---|---|---|---|---|
| I20121127000147 | I | Endocrinology | 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 |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 6,060 | 67 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 481 | 349 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 116 | 72 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 109 | 61 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 103 | 103 | $0 |
Insurance plans in this area (ZIP 98004)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O L O G Y | CA | |
| Qualified Speech Language Pathologist | WA | |
| Physical Therapist In Private Practice | WA | |
| Family Practice | WA | |
| - | WA | |
| Physical Therapist In Private Practice | WA | |
| Family Practice | WA | |
| - | WA | |
| Nurse Practitioner | TX | |
| - | WA |
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