Marguerite Lamb
NPI 1114326261 · Family Nurse Practitioner · Cromwell, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marguerite Lamb is a Family Nurse Practitioner provider in Cromwell, CT (NPI 1114326261).
Provider details
- NPI number
- 1114326261
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 005856 (CT)
Specialties & taxonomies
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
11 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
174 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $83 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $165 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 26 | $121 |
| Automated Urinalysis Test81003 | 13 | $2 |
Typical Medicare-allowed amounts for these services range $2–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 189 | 48 |
| Levothyroxine Sodium | 85 | 20 |
| Rosuvastatin Calcium | 62 | 17 |
| Lisinopril | 60 | 16 |
| Metformin Hclbrand: Metformin Hcl Er | 55 | 16 |
| Omeprazole | 53 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-08-14
- Last updated
- 2025-11-05
- Certified
- 2025-11-05
Frequently asked questions
- What is Marguerite Lamb's NPI number?
- Marguerite Lamb's National Provider Identifier (NPI) is 1114326261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marguerite Lamb's specialty?
- Marguerite Lamb is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marguerite Lamb located?
- Marguerite Lamb's practice location on file with NPPES is 70 Shunpike Rd, Cromwell, CT 06416.
- What is Marguerite Lamb's phone number?
- The practice phone number listed in the NPPES registry for Marguerite Lamb is (860) 358-5280.
- Does Marguerite Lamb accept Medicare?
- Marguerite Lamb is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marguerite Lamb's NPI active?
- Yes — Marguerite Lamb's NPI (1114326261) is active in the NPPES registry as of the last update on 2025-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.