Quick answers
- Does Freddie Dayao accept Medicare assignment?
- Yes. Medicare's clinician data says Freddie Dayao accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Freddie Dayao see?
- In 2024, CMS data shows 76 Original Medicare patients and 163 services for Freddie Dayao. This counts Original Medicare only and measures volume, not quality.
- What is Freddie Dayao's NPI number?
- 1447967559. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Freddie Dayao, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 76 |
|---|---|
| Services billed to Medicare | 163 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)75 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)24 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Ischemic heart disease39%
- Anxiety39%
- Diabetes36%
Hospitals where Freddie Dayao works
Medicare's Facility Affiliation Data lists Freddie Dayao at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070022
Practice locations
Addresses where Freddie Dayao is enrolled with Medicare (CMS data updated October 2, 2026).
- 136 Sherman Ave, Lowr LevelNew Haven, CT 06511 (203) 675‑1199
- 1427 Chapel StNew Haven, CT 06511 (203) 865‑3880
- 62 Washington St, Suite 3Middletown, CT 06457 (203) 675‑1199
Group practices
Medicare enrollment lists Freddie Dayao as a member of these groups (CMS data updated October 2, 2026).
- Sanjay Aggarwal7 clinicians in the group
- TPTC-NH LLC4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in New Haven
Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.
Other clinicians in Sanjay Aggarwal
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447967559 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians