Mary Lake, FNP
NPI 1578671871 · Family Nurse Practitioner · Topsham, ME
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Lake, FNP is a Family Nurse Practitioner provider in Topsham, ME (NPI 1578671871).
Provider details
- NPI number
- 1578671871
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- R019912 (ME)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 54 | 13 |
| Atorvastatin Calcium | 45 | 12 |
| Pantoprazole Sodium | 43 | 11 |
| Gabapentin | 33 | 11 |
| Furosemide | 32 | 13 |
| Amlodipine Besylate | 30 | 11 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$88 across 5 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
- 2006-08-27
- Last updated
- 2016-02-11
Frequently asked questions
- What is Mary Lake's NPI number?
- Mary Lake's National Provider Identifier (NPI) is 1578671871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Lake's specialty?
- Mary Lake is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Lake located?
- Mary Lake's practice location on file with NPPES is 1 Wellness Way, Topsham, ME 04086-1768.
- What is Mary Lake's phone number?
- The practice phone number listed in the NPPES registry for Mary Lake is (207) 406-7667.
- Does Mary Lake accept Medicare?
- Mary Lake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Lake's NPI active?
- Yes — Mary Lake's NPI (1578671871) is active in the NPPES registry as of the last update on 2016-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.