2026 NPPES data Intellectual & Developmental Disabilities Psychologist NPI 1457541914 MA LLP
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Valerie Stefanof, MA LLP

Intellectual & Developmental Disabilities Psychologist in South Lyon, Michigan.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 941 in Intellectual & Developmental Disabilities Psychologist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Valerie Stefanof, MA LLP is a Intellectual & Developmental Disabilities Psychologist in South Lyon, Michigan, listed in the federal CMS National Provider Identifier registry.

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

What does the federal data show about Valerie Stefanof, MA LLP?

Quality data not reported

NPI registry status

Active

Issued 07/30/2007

NPI 1457541914

Primary specialty

Intellectual & Developmental Disabilities Psychologist

Niche

941 US NPIs in this specialty

Specialty distribution in Michigan

How Intellectual & Developmental Disabilities Psychologist compares to other specialties among Michigan providers

Michigan providers
Behavior Technician - 21.4%Behavior Technician21.4%Clinical Social Worker - 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program - 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist - 3.4%Physical Therapist3.4%Social Worker - 3.4%Social Worker3.4%Pharmacist - 3%Pharmacist3%Intellectual & Developmental Disabilities Psychologist - 0%Intellectual & Developmental Disabilities Psychologist0%
Largest specialties in Michigan (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Intellectual & Developmental Disabilities Psychologist. Verify directly:

How MIPS and board certification work

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).

Valerie Stefanof, MA LLP appears in the CMS NPPES registry as an Intellectual & Developmental Disabilities Psychologist provider holding MA LLP credentials at 5641 6 MILE RD, South Lyon, MI, 48178, with a listed phone of (248) 437-7272. NPI 1457541914 was issued on 07/30/2007.

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 Intellectual & Developmental Disabilities Psychologist providers operate outside Part D entirely.

Intellectual & Developmental Disabilities Psychologist is a narrow specialty nationwide, with 941 enrolled providers across 48 states and an average of 254 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

5641 6 MILE RD
South Lyon, MI 48178

Provider Details

NPI 1457541914
Specialty Intellectual & Developmental Disabilities Psychologist
Credentials MA LLP
Gender Female
NPI Issued 07/30/2007

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 Valerie Stefanof, MA LLP. To verify Valerie Stefanof, MA LLP'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.

Intellectual & Developmental Disabilities Psychologist Overview

How Valerie Stefanof, MA LLP fits within the Intellectual & Developmental Disabilities Psychologist landscape nationally.

941
Intellectual & Developmental Disabilities Psychologist Providers in US
48
States with Intellectual & Developmental Disabilities Psychologist
254
Avg Claims per Provider

Nearby Intellectual & Developmental Disabilities Psychologist Providers in Michigan

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

Compare Intellectual & Developmental Disabilities Psychologist nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Michigan medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Intellectual & Developmental Disabilities Psychologist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Valerie Stefanof, MA LLP's specialty?
Valerie Stefanof, MA LLP specializes in Intellectual & Developmental Disabilities Psychologist and practices in South Lyon, Michigan. Credentials: MA LLP.
Where is Valerie Stefanof, MA LLP located?
Valerie Stefanof, MA LLP is located at 5641 6 MILE RD, South Lyon, MI, 48178. Phone: (248) 437-7272.
What is Valerie Stefanof, MA LLP's NPI number?
Valerie Stefanof, MA LLP's National Provider Identifier (NPI) is 1457541914, issued on 07/30/2007.
How many Intellectual & Developmental Disabilities Psychologist providers are there in the US?
There are 941 Intellectual & Developmental Disabilities Psychologist providers across 48 states in the US. The average Intellectual & Developmental Disabilities Psychologist provider writes 254 Medicare Part D claims per year.
Does Valerie Stefanof, MA LLP accept Medicare?
Valerie Stefanof, MA LLP appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Valerie Stefanof, MA LLP's credentials?
Valerie Stefanof, MA LLP's NPI is 1457541914 with credentials MA LLP. 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

View source datasets and methodology notes
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

Compiled from official public sources by the PlainDoctor editorial team.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.