Megan Armstrong
NPI 1801401757 · Orthopaedic Surgery Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1801401757
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,683 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) |
|---|---|---|
| X-Ray of Knee, 3 Views73562 | 512 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 481 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 352 | $62 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 336 | $196 |
| X-Ray for Bone Length Assessment77073 | 203 | $12 |
| X-Ray of Hip, 1 View73501 | 169 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 444 | 364 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 322 | 251 |
| Ondansetron Hcl | 290 | 277 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 195 | 129 |
| Cephalexin | 173 | 164 |
| Tramadol Hcl | 107 | 88 |
| Clindamycin Hcl | 79 | 61 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$118 across 2 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
Additional practice locations (2)
- 2500 Mowry AveFremont, CA 94538-1605Phone: (510) 818-7200Fax: (510) 818-8710
- 695 Oak Grove Ave Ste 200Menlo Park, CA 94025-4369Phone: (510) 818-7200Fax: (510) 818-8710
Registry dates
- Enumerated
- 2020-09-08
- Last updated
- 2023-02-23
- Certified
- 2023-02-23
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.