Amy Haydon-Ryan, BS, PA-C
NPI 1598938078 · Physician Assistant · New Haven, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amy Haydon-Ryan, BS, PA-C is a Physician Assistant provider in New Haven, CT (NPI 1598938078).
Provider details
- NPI number
- 1598938078
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- BS, PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 175 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
320 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 131 | $80 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 125 | $63 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 42 | $99 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 22 | $51 |
Typical Medicare-allowed amounts for these services range $51–$99 (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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 68 | 48 |
| Celecoxib | 59 | 31 |
| Diclofenac Sodium | 58 | 26 |
| Meloxicam | 53 | 18 |
| Tramadol Hcl | 31 | 24 |
| Mupirocin | 14 | 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.
Practice location
Mailing address
Additional practice locations (1)
- 305 Black Rock TpkeFairfield, CT 06825-5508Phone: (203) 337-2600Fax: (203) 337-2666
Registry dates
- Enumerated
- 2008-04-07
- Last updated
- 2020-10-16
- Certified
- 2020-09-10
Frequently asked questions
- What is Amy Haydon-Ryan's NPI number?
- Amy Haydon-Ryan's National Provider Identifier (NPI) is 1598938078, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amy Haydon-Ryan's specialty?
- Amy Haydon-Ryan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amy Haydon-Ryan located?
- Amy Haydon-Ryan's practice location on file with NPPES is 800 Howard Ave Fl 1, New Haven, CT 06519-1369.
- What is Amy Haydon-Ryan's phone number?
- The practice phone number listed in the NPPES registry for Amy Haydon-Ryan is (877) 925-3637.
- Does Amy Haydon-Ryan accept Medicare?
- Amy Haydon-Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amy Haydon-Ryan's NPI active?
- Yes — Amy Haydon-Ryan's NPI (1598938078) is active in the NPPES registry as of the last update on 2020-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.