2026 NPPES data Lactation Consultant (Registered Nurse) NPI 1861900094
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LESLIE DARBY

Lactation Consultant (Registered Nurse) in ANN ARBOR, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
What the federal data reveals: LESLIE DARBY is a Lactation Consultant (Registered Nurse) ([object Object]) practicing in ANN ARBOR, Michigan .

What stands out: LESLIE DARBY specializes in Lactation Consultant (Registered Nurse) and practices in ANN ARBOR, Michigan, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

LESLIE DARBY at a glance

Quality data not reported

NPI registry status

Active

Issued 01/23/2018

NPI 1861900094

Primary specialty

Lactation Consultant (Registered Nurse)

Niche

3,799 US NPIs in this specialty

Specialty distribution in Michigan

How Lactation Consultant (Registered Nurse) compares to other specialties among Michigan providers

Michigan providers

Lactation Consultant (Registered Nurse) share within Michigan

1. Lactation Consultant (Registered Nurse)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Lactation Consultant (Registered Nurse) share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Lactation Consultant (Registered Nurse) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Lactation Consultant (Registered Nurse) ABMS/AOA estimate

Est. board-certified rate (Lactation Consultant (Registered Nurse)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Lactation Consultant (Registered Nurse)) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

LESLIE DARBY is a Lactation Consultant (Registered Nurse) provider practicing in ANN ARBOR, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1861900094. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

LESLIE DARBY appears in the CMS NPPES registry as a Lactation Consultant (Registered Nurse) provider at 2850 S INDUSTRIAL HWY STE 75, ANN ARBOR, MI, 48104, with a listed phone of (734) 677-1515. NPI 1861900094 was issued on 01/23/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DARBY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Lactation Consultant (Registered Nurse) providers operate outside Part D entirely.

Lactation Consultant (Registered Nurse) is a narrow specialty nationwide, with 3,799 enrolled providers across 53 states and an average of 560 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2850 S INDUSTRIAL HWY STE 75
ANN ARBOR, MI 48104

Provider Details

NPI 1861900094
Specialty Lactation Consultant (Registered Nurse)
Gender Female
NPI Issued 01/23/2018

License & disciplinary context — Michigan MI-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to LESLIE DARBY. To verify LESLIE DARBY's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Lactation Consultant (Registered Nurse) Overview

How LESLIE DARBY fits within the Lactation Consultant (Registered Nurse) landscape nationally.

3,799
Lactation Consultant (Registered Nurse) Providers in US
53
States with Lactation Consultant (Registered Nurse)
560
Avg Claims per Provider

Nearby Lactation Consultant (Registered Nurse) Providers in Michigan

Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as DARBY.

Compare Lactation Consultant (Registered Nurse) nationally: see state-by-state distribution →

Frequently Asked Questions

What is LESLIE DARBY's specialty?
LESLIE DARBY specializes in Lactation Consultant (Registered Nurse) and practices in ANN ARBOR, Michigan.
Where is LESLIE DARBY located?
LESLIE DARBY is located at 2850 S INDUSTRIAL HWY STE 75, ANN ARBOR, MI, 48104. Phone: (734) 677-1515.
What is LESLIE DARBY's NPI number?
LESLIE DARBY's National Provider Identifier (NPI) is 1861900094, issued on 01/23/2018.
How many Lactation Consultant (Registered Nurse) providers are there in the US?
There are 3,799 Lactation Consultant (Registered Nurse) providers across 53 states in the US. The average Lactation Consultant (Registered Nurse) provider writes 560 Medicare Part D claims per year.
Does LESLIE DARBY accept Medicare?
LESLIE DARBY appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LESLIE DARBY's credentials?
LESLIE DARBY's NPI is 1861900094. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology