Downtown Baltimore Surgery Center, LLC
NPI 1255446910 · Ambulatory Surgical Clinic/Center · Baltimore, MD
Enrolled with Medicare as Part B Supplier - Ambulatory Surgical Center · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Downtown Baltimore Surgery Center, LLC is a Ambulatory Surgical Clinic/Center organization in Baltimore, MD (NPI 1255446910).
Provider details
- NPI number
- 1255446910
- Entity type
- Organization
- Primary specialty
- Ambulatory Surgical Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Marc Posner, President(410) 752-2262
- License
- A1334R (MD)
Specialties & taxonomies
Ambulatory Health Care Facilities
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
59 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) |
|---|---|---|
| Colorectal Cancer Screening; Colonoscopy on Individual Not Meeting Criteria for High RiskG0121 | 17 | $460 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 15 | $596 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 14 | $377 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 13 | $462 |
Typical Medicare-allowed amounts for these services range $377–$596 (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
- 2006-08-20
- Last updated
- 2011-09-20
Frequently asked questions
- What is Downtown Baltimore Surgery Center, LLC's NPI number?
- Downtown Baltimore Surgery Center, LLC's National Provider Identifier (NPI) is 1255446910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Downtown Baltimore Surgery Center, LLC?
- Downtown Baltimore Surgery Center, LLC is classified in the NPPES registry as Ambulatory Surgical Clinic/Center (Ambulatory Health Care Facilities).
- Where is Downtown Baltimore Surgery Center, LLC located?
- Downtown Baltimore Surgery Center, LLC's practice location on file with NPPES is 20 W West St, Baltimore, MD 21230-3729.
- What is Downtown Baltimore Surgery Center, LLC's phone number?
- The practice phone number listed in the NPPES registry for Downtown Baltimore Surgery Center, LLC is (410) 752-2262.
- Does Downtown Baltimore Surgery Center, LLC accept Medicare?
- Downtown Baltimore Surgery Center, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Downtown Baltimore Surgery Center, LLC?
- The authorized official listed on Downtown Baltimore Surgery Center, LLC's NPPES record is Marc Posner, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Downtown Baltimore Surgery Center, LLC's NPI active?
- Yes — Downtown Baltimore Surgery Center, LLC's NPI (1255446910) is active in the NPPES registry as of the last update on 2011-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.