Colby Nixon, DO
NPI 1740740315 · Internal Medicine Physician · Portland, ME
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colby Nixon, DO is a Internal Medicine Physician provider in Portland, ME (NPI 1740740315).
Provider details
- NPI number
- 1740740315
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 292791 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
236 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 209 | $170 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 27 | $117 |
Typical Medicare-allowed amounts for these services range $117–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 759 Chestnut St Ste C3350Springfield, MA 01107-1619Phone: (413) 794-6297Fax: (413) 794-1767
Registry dates
- Enumerated
- 2019-03-21
- Last updated
- 2024-09-16
- Certified
- 2024-09-16
Frequently asked questions
- What is Colby Nixon's NPI number?
- Colby Nixon's National Provider Identifier (NPI) is 1740740315, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colby Nixon's specialty?
- Colby Nixon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Colby Nixon located?
- Colby Nixon's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3175.
- What is Colby Nixon's phone number?
- The practice phone number listed in the NPPES registry for Colby Nixon is (207) 662-0111.
- Does Colby Nixon accept Medicare?
- Colby Nixon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colby Nixon's NPI active?
- Yes — Colby Nixon's NPI (1740740315) is active in the NPPES registry as of the last update on 2024-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.