Dr. Leonard Klayman , DDS
Dentist - General Practice β’ Northbrook, IL
1535 Lake Cook Rd, Suite 107
Northbrook, IL 600621453
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Leonard Klayman is listed in NPPES under Dentist - General Practice.
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NPI assigned on November 8, 2006; this date does not establish years in practice.
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Published CMS data list 16 Medicare Part D prescriptions, including refills, in 2017.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017. Published rows only; this is not a quality measure.
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Published Part D records, 2017:
- Amoxicillin β 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
Practice Location & Contact Primary Location
1535 Lake Cook Rd
Suite 107
Northbrook, IL 600621453
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dentist - General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
16 standardized 30-day fills in 2017
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$47 in 2017
The total cost of these prescriptions in 2017, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Northbrook and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Klayman are from 2017.
30 active clinicians are listed under Dentist - General Practice with a practice address in Northbrook, IL (5,281 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Northbrook
0% of these 30 clinicians have the CMS telehealth indicator.
0% of these 30 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2017 only.
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30-day fills
CMS data for 30-day fills are available for 2017 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2017 only.
Sources: CMS Medicare Part D Prescribers (2017), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2017.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amoxicillin | Amoxicillin | 16 | 76 | $47.14 | 11 |
Source: CMS Part D by Provider and Drug, 2017; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Psychiatry & Neurology - Neurology
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Psychologist - Clinical
Doctor of Psychology (Psy.D.)
Plastic Surgery
Doctor of Medicine (M.D.)
Dentist
Doctor of Dental Surgery
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated November 08, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Dentist - General Practices in Northbrook
- Dr. Tony Athans, DDS
- Dr. Darryl Skale, DDS
- Dr. Mark Humenik, DDS, PC
- Dr. Edwin Schlesinger, DDS
- Gary Alberts, GARY ALBERTS
- Dr. Daniel Salzer, DDS
Mailing Address
1535 Lake Cook Rd, Suite 107
Northbrook, IL 600621447
Phone: 8472918100