Richard Nellis, PA-C
NPI 1649438516 · Physician Assistant · Darien, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Nellis, PA-C is a Physician Assistant provider in Darien, CT (NPI 1649438516).
Provider details
- NPI number
- 1649438516
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 005341 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
97 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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 49 | $55 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 20 | $90 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 16 | $64 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 12 | $63 |
Typical Medicare-allowed amounts for these services range $55–$90 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 36 | 36 |
| Cephalexin | 30 | 29 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 21 | 21 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 20 | 19 |
| Doxycycline Hyclate | 19 | 19 |
| Ondansetronbrand: Ondansetron Odt | 14 | 14 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro |
Practice location
Mailing address
Additional practice locations (2)
- 20449 Koglin RdHutchinson, MN 55350-4332Phone: (612) 327-2732
- 3065 Route 50 Ste 30Saratoga Springs, NY 12866-2920Phone: (518) 886-5800
Registry dates
- Enumerated
- 2008-05-28
- Last updated
- 2026-01-26
- Certified
- 2026-01-26
Frequently asked questions
- What is Richard Nellis's NPI number?
- Richard Nellis's National Provider Identifier (NPI) is 1649438516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Nellis's specialty?
- Richard Nellis is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Richard Nellis located?
- Richard Nellis's practice location on file with NPPES is 104 Heights Rd # R103, Darien, CT 06820-4119.
- What is Richard Nellis's phone number?
- The practice phone number listed in the NPPES registry for Richard Nellis is (888) 663-6331.
- Does Richard Nellis accept Medicare?
- Richard Nellis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Nellis's NPI active?
- Yes — Richard Nellis's NPI (1649438516) is active in the NPPES registry as of the last update on 2026-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.