Mary Louise Collins, M.D.
NPI 1063431724 · Ophthalmology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Louise Collins, M.D. is a Ophthalmology Physician provider in Baltimore, MD (NPI 1063431724).
Provider details
- NPI number
- 1063431724
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D44743 (MD)
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
512 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) |
|---|---|---|
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 190 | $40 |
| Exam to Measure Eye Deviation and Range of Motion92060 | 166 | $66 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 119 | $24 |
| Ct Scan of Cornea92025 | 37 | $15 |
Typical Medicare-allowed amounts for these services range $15–$66 (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
- 2006-07-19
- Last updated
- 2011-12-07
Frequently asked questions
- What is Mary Louise Collins's NPI number?
- Mary Louise Collins's National Provider Identifier (NPI) is 1063431724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Louise Collins's specialty?
- Mary Louise Collins is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Louise Collins located?
- Mary Louise Collins's practice location on file with NPPES is 6569 N Charles St, Baltimore, MD 21204-6831.
- What is Mary Louise Collins's phone number?
- The practice phone number listed in the NPPES registry for Mary Louise Collins is (443) 849-2196.
- Does Mary Louise Collins accept Medicare?
- Mary Louise Collins is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Louise Collins's NPI active?
- Yes — Mary Louise Collins's NPI (1063431724) is active in the NPPES registry as of the last update on 2011-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.