Allison Colby, MPAS, PA-C
NPI 1720352933 · Physician Assistant · Woodbridge, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allison Colby, MPAS, PA-C is a Physician Assistant provider in Woodbridge, VA (NPI 1720352933).
Provider details
- NPI number
- 1720352933
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MPAS, PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 0110003822 (VA)
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 tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 124 | 39 |
| Levothyroxine Sodium | 73 | 20 |
| Amlodipine Besylate | 70 | 24 |
| Metformin Hcl | 67 | 23 |
| Lisinopril | 62 | 21 |
| Losartan Potassium | 57 | 21 |
| Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (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 (1)
- 6356 Hoadly RdManassas, VA 20112-3422Phone: (703) 590-5999Fax: (703) 590-5399
Registry dates
- Enumerated
- 2012-03-06
- Last updated
- 2019-11-19
Frequently asked questions
- What is Allison Colby's NPI number?
- Allison Colby's National Provider Identifier (NPI) is 1720352933, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Colby's specialty?
- Allison Colby is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Allison Colby located?
- Allison Colby's practice location on file with NPPES is 4379 Ridgewood Center Dr, Woodbridge, VA 22192.
- What is Allison Colby's phone number?
- The practice phone number listed in the NPPES registry for Allison Colby is (703) 680-7950.
- Does Allison Colby accept Medicare?
- Allison Colby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allison Colby's NPI active?
- Yes — Allison Colby's NPI (1720352933) is active in the NPPES registry as of the last update on 2019-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.