HEIDI L GRIGGS (DO) – Internal Medicine Physician, NPI 1902876477
Internal Medicine Physician
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Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
7,232 INTERNAL MEDICINE in MI
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Provider Addresses for HEIDI L GRIGGS (DO)
2600, West Centre Avenue, Portage, Kalamazoo County, Michigan, 49024, United States
PORTAGE, MI 490244828
Phone: (269) 324-4141
Fax: (269) 324-2020
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)
CMS reports 25 Open Payments records for all available years, with a total value of $496.
Total Amount is formed as General ($496) + Research ($0) + Ownership ($0) = $496.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Novo Nordisk Inc ($80).
Total Amount
$496
General + Research + Ownership
Payments
25
Total payment records
General Amount
$496
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $80 |
| Merck Sharp & Dohme LLC | $54 |
| Inspire Medical Systems, Inc. | $41 |
| Amgen Inc. | $38 |
| Abbott Laboratories | $38 |
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: 2010-01-19
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20100119000756 | I | Internal Medicine | MI | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 170 | 137 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 122 | 122 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 56 | 44 | $0 |
| 99421 | Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes | 28 | 21 | $0 |
Insurance plans in this area (ZIP 49024)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| Physician Assistant | MI | |
| Physician Assistant | MI | |
| Family Practice | MI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| Endocrinology, Internal Medicine | MI | |
| Clinical Social Worker | MI | |
| Internal Medicine | MI | |
| - | MI | |
| Cardiovascular Disease (Cardiology) | MI |
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