Mollie Simmons, MD
NPI 1871883942 · Adult Congenital Heart Disease Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Adult Congenital Heart Disease (achd) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mollie Simmons, MD is a Adult Congenital Heart Disease Physician provider in New Haven, CT (NPI 1871883942).
Provider details
- NPI number
- 1871883942
- Entity type
- Individual
- Primary specialty
- Adult Congenital Heart Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD2020-0355 (NM)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
75 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) |
|---|---|---|
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 17 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 17 | $3 |
| Ultrasound of Heart for Congenital Defect93303 | 15 | $58 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 13 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 | $93 |
Typical Medicare-allowed amounts for these services range $3–$93 (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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Furosemide | 32 |
| Spironolactone | 22 |
| Sildenafil Citrate | 15 |
| Bumetanide | 14 |
| Metoprolol Succinate | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$85 across 2 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
- 2011-04-11
- Last updated
- 2024-05-24
- Certified
- 2024-05-24
Frequently asked questions
- What is Mollie Simmons's NPI number?
- Mollie Simmons's National Provider Identifier (NPI) is 1871883942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mollie Simmons's specialty?
- Mollie Simmons is listed in the NPPES registry with a primary specialty of Adult Congenital Heart Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mollie Simmons located?
- Mollie Simmons's practice location on file with NPPES is 20 York St, New Haven, CT 06510.
- What is Mollie Simmons's phone number?
- The practice phone number listed in the NPPES registry for Mollie Simmons is (203) 688-4242.
- Does Mollie Simmons accept Medicare?
- Mollie Simmons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mollie Simmons's NPI active?
- Yes — Mollie Simmons's NPI (1871883942) is active in the NPPES registry as of the last update on 2024-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.