DR. KRISTINA K. STJERNFELDT (M.D.) – Internal Medicine Physician, NPI 1467638874
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,722 INTERNAL MEDICINE in MA
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Provider Addresses for DR. KRISTINA K. STJERNFELDT (M.D.)
110 WORCESTER ST.
SUITE 301
WELLESLEY, MA 02481
Phone: (617) 731-0058
Fax: (617) 731-0825
Type: Mailing
Boston Children's at Lexington, 482, Bedford Street, Lexington, Middlesex County, Massachusetts, 02420-3427, United States
BETH ISRAEL DEACONESS HEALTHCARE, LEXINGTON
LEXINGTON, MA 024201402
Phone: (781) 672-2250
Fax: (781) 672-2259
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $162.
Total Amount is formed as General ($162) + Research ($0) + Ownership ($0) = $162.
Last reported payment date: 2024-10-21 • Largest payer in this snapshot: Amgen Inc. ($41).
Total Amount
$162
General + Research + Ownership
Payments
8
Total payment records
General Amount
$162
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $41 |
| PFIZER INC. | $38 |
| ABBVIE INC. | $30 |
| Medtronic, Inc. | $21 |
| Lilly USA, LLC | $16 |
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: 2008-06-04
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 |
|---|---|---|---|---|
| I20080604000073 | I | Internal Medicine | MA | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 117 | 90 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 94 | 53 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 92 | 92 | $0 |
| G0008 | Administration of influenza virus vaccine | 33 | 33 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 32 | 32 | $0 |
Insurance plans in this area (ZIP 02481)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA |
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