2026 NPPES data Specialist NPI 1669562880 M.D.
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STEVEN VALFER, M.D.

Specialist in NORTHBROOK, Illinois. 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.
Prescribing volume
281
Medicare Part D claims · 75 beneficiaries · Specialist avg: 1K
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

STEVEN VALFER, M.D. filed 281 Medicare Part D claims in 2023 as a Specialist in NORTHBROOK, Illinois, prescribing 68% generic.

281
Part D claims, 2023
68%
generic prescribing

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.

STEVEN VALFER, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

281 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about STEVEN VALFER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/16/2006

NPI 1669562880

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

281 81% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Illinois

How Specialist compares to other specialties among Illinois providers

Illinois providers

Specialist share within Illinois

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — 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).

STEVEN VALFER, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 60 REVERE DR, NORTHBROOK, IL, 60062, with a listed phone of (847) 272-7777. NPI 1669562880 was issued on 10/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VALFER 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 records for calendar year 2023 show 281 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $41K in drug spend, split 32% brand-name and 68% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

60 REVERE DR
NORTHBROOK, IL 60062

Provider Details

NPI 1669562880
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 10/16/2006

Hospital and facility affiliations

Facilities where STEVEN VALFER, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

HIGHLAND PARK OB-GYN ASSOCIATES, LTD
NORTHBROOK, IL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to STEVEN VALFER, M.D.. To verify STEVEN VALFER, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

STEVEN VALFER, M.D. — brand share 32.0%
Specialty average (est.)

32% brand-name claims vs 68% generic, on 281 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

281
Total Claims
$41K
Total Drug Cost
75
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
581
Total Day Supply
15,449
Brand vs Generic
32% brand / 68% generic
Brand Drug Cost
$30K
Generic Drug Cost
$11K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
0.82

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What STEVEN VALFER, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Estradiol
46
Estradiol (Once Weekly)
Estradiol
27
Climara Pro
Estradiol/Levonorgestrel
20
Alendronate Sodium
16
Medroxyprogesterone Acetate
15
Clobetasol Propionate
13
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
11
Terconazole
11
Premarin
"Estrogens
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Specialist Overview

How STEVEN VALFER, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

STEVEN VALFER, M.D.'s 281 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Illinois

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEVEN VALFER, M.D.'s specialty?
STEVEN VALFER, M.D. specializes in Specialist and practices in NORTHBROOK, Illinois. Credentials: M.D..
How much does STEVEN VALFER, M.D. prescribe under Medicare Part D?
In 2023, STEVEN VALFER, M.D. wrote 281 Medicare Part D claims totaling $41K in drug costs for 75 beneficiaries.
Where is STEVEN VALFER, M.D. located?
STEVEN VALFER, M.D. is located at 60 REVERE DR, NORTHBROOK, IL, 60062. Phone: (847) 272-7777.
What is STEVEN VALFER, M.D.'s NPI number?
STEVEN VALFER, M.D.'s National Provider Identifier (NPI) is 1669562880, issued on 10/16/2006.
Does STEVEN VALFER, M.D. prescribe more brand-name or generic drugs?
STEVEN VALFER, M.D.'s prescribing is 32% brand-name and 68% generic drugs by claim count, with $30K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does STEVEN VALFER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEVEN VALFER, M.D.'s most frequently prescribed drugs include Estradiol, Estradiol (Once Weekly), Climara Pro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEVEN VALFER, M.D. accept Medicare?
STEVEN VALFER, M.D. appears in CMS Medicare data with 281 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEVEN VALFER, M.D.'s credentials?
STEVEN VALFER, M.D.'s NPI is 1669562880 with credentials M.D.. 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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