Margaret Tolbert, NP
NPI 1124018726 · Adult Health Nurse Practitioner · Stanford, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Tolbert, NP is a Adult Health Nurse Practitioner provider in Stanford, CA (NPI 1124018726).
Provider details
- NPI number
- 1124018726
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 4704229115 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
14 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Diagnostic Exam of Anus Using an Endoscope46600 | 14 | $42 |
Typical Medicare-allowed amounts for these services range $42–$42 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (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
Additional practice locations (1)
- 41 Mall RdBurlington, MA 01805-0001Phone: (781) 744-8000
Registry dates
- Enumerated
- 2005-10-25
- Last updated
- 2026-04-28
- Certified
- 2026-04-28
Frequently asked questions
- What is Margaret Tolbert's NPI number?
- Margaret Tolbert's National Provider Identifier (NPI) is 1124018726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Tolbert's specialty?
- Margaret Tolbert is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Tolbert located?
- Margaret Tolbert's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Margaret Tolbert's phone number?
- The practice phone number listed in the NPPES registry for Margaret Tolbert is (650) 723-4000.
- Does Margaret Tolbert accept Medicare?
- Margaret Tolbert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Tolbert's NPI active?
- Yes — Margaret Tolbert's NPI (1124018726) is active in the NPPES registry as of the last update on 2026-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.