Leslie Gass, DO
NPI 1679668453 · Neuromusculoskeletal Medicine & OMM Physician · Portland, ME
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Gass, DO is a Neuromusculoskeletal Medicine & OMM Physician provider in Portland, ME (NPI 1679668453).
Provider details
- NPI number
- 1679668453
- Entity type
- Individual
- Primary specialty
- Neuromusculoskeletal Medicine & OMM PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 1804 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
268 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 129 | $89 |
| Osteopathic Manipulative Treatment, 9-10 Body Regions98929 | 74 | $82 |
| Osteopathic Manipulative Treatment, 7-8 Body Regions98928 | 65 | $70 |
Typical Medicare-allowed amounts for these services range $70–$89 (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
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2012-04-24
Frequently asked questions
- What is Leslie Gass's NPI number?
- Leslie Gass's National Provider Identifier (NPI) is 1679668453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Gass's specialty?
- Leslie Gass is listed in the NPPES registry with a primary specialty of Neuromusculoskeletal Medicine & OMM Physician (Allopathic & Osteopathic Physicians).
- Where is Leslie Gass located?
- Leslie Gass's practice location on file with NPPES is 535 Ocean Ave, Portland, ME 04103-4973.
- What is Leslie Gass's phone number?
- The practice phone number listed in the NPPES registry for Leslie Gass is (207) 773-7330.
- Does Leslie Gass accept Medicare?
- Leslie Gass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Gass's NPI active?
- Yes — Leslie Gass's NPI (1679668453) is active in the NPPES registry as of the last update on 2012-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.