Mary Bailey, MD
NPI 1558543686 · Neurology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Bailey, MD is a Neurology Physician provider in New Haven, CT (NPI 1558543686).
Provider details
- NPI number
- 1558543686
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
81 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $129 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 12 | $188 |
Typical Medicare-allowed amounts for these services range $129–$188 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Baclofen | 134 | 46 |
| Gabapentin | 92 | 31 |
| Dalfampridinebrand: Dalfampridine Er | 55 | — |
| Ofatumumabbrand: Kesimpta Pen | 49 | — |
| Tizanidine Hcl | 49 | 20 |
| Diroximel Fumaratebrand: Vumerity | 30 | — |
| Teriflunomidebrand: Aubagio | 30 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$59,125 across 49 records (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
Registry dates
- Enumerated
- 2007-11-30
- Last updated
- 2012-10-11
Frequently asked questions
- What is Mary Bailey's NPI number?
- Mary Bailey's National Provider Identifier (NPI) is 1558543686, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Bailey's specialty?
- Mary Bailey is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Bailey located?
- Mary Bailey's practice location on file with NPPES is 40 Temple St Lowr Level, New Haven, CT 06510-2715.
- What is Mary Bailey's phone number?
- The practice phone number listed in the NPPES registry for Mary Bailey is (203) 785-5602.
- Does Mary Bailey accept Medicare?
- Mary Bailey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Bailey's NPI active?
- Yes — Mary Bailey's NPI (1558543686) is active in the NPPES registry as of the last update on 2012-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.