Nancy Llewellyn, M.D.
NPI 1760576474 · Internal Medicine Physician · Anacortes, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Llewellyn, M.D. is a Internal Medicine Physician provider in Anacortes, WA (NPI 1760576474).
Provider details
- NPI number
- 1760576474
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD00027709 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
64 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 64 | $124 |
Typical Medicare-allowed amounts for these services range $124–$124 (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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 87 |
| Furosemide | 75 |
| Metoprolol Succinate | 71 |
| Potassium Chloride | 56 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 55 |
| Gabapentin | 49 |
| Metoprolol Tartrate | 41 |
| Trazodone Hcl | 38 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2011-07-13
Frequently asked questions
- What is Nancy Llewellyn's NPI number?
- Nancy Llewellyn's National Provider Identifier (NPI) is 1760576474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Llewellyn's specialty?
- Nancy Llewellyn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Llewellyn located?
- Nancy Llewellyn's practice location on file with NPPES is 912 32nd St, Anacortes, WA 98221-3473.
- What is Nancy Llewellyn's phone number?
- The practice phone number listed in the NPPES registry for Nancy Llewellyn is (360) 293-4343.
- Does Nancy Llewellyn accept Medicare?
- Nancy Llewellyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Llewellyn's NPI active?
- Yes — Nancy Llewellyn's NPI (1760576474) is active in the NPPES registry as of the last update on 2011-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.