Margaret Underwood
NPI 1629667878 · Physician Assistant · Saint Paul, MN
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Underwood is a Physician Assistant provider in Saint Paul, MN (NPI 1629667878).
Provider details
- NPI number
- 1629667878
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 13574 (MN)
Specialties & taxonomies
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
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
245 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 118 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $106 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 32 | $9 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 24 | $8 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 12 | $12 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 178 | 87 |
| Rosuvastatin Calcium | 104 | 48 |
| Atorvastatin Calcium | 90 | 42 |
| Furosemide | 84 | 55 |
| Amlodipine Besylate | 69 | 34 |
| Apixabanbrand: Eliquis | 68 | 27 |
| Clopidogrel Bisulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$179 across 7 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
- 2021-01-12
- Last updated
- 2021-08-18
- Certified
- 2021-08-18
Frequently asked questions
- What is Margaret Underwood's NPI number?
- Margaret Underwood's National Provider Identifier (NPI) is 1629667878, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Underwood's specialty?
- Margaret Underwood is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Underwood located?
- Margaret Underwood's practice location on file with NPPES is 225 Smith Ave N Ste 400, Saint Paul, MN 55102-2568.
- What is Margaret Underwood's phone number?
- The practice phone number listed in the NPPES registry for Margaret Underwood is (512) 900-1336.
- Does Margaret Underwood accept Medicare?
- Margaret Underwood is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Underwood's NPI active?
- Yes — Margaret Underwood's NPI (1629667878) is active in the NPPES registry as of the last update on 2021-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.