2026 NPPES data Adult Health Clinical Nurse Specialist NPI 1629363353 APN
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CHRISTEN LAMBERTI, APN

Adult Health Clinical Nurse Specialist in HOFFMAN ESTATES, 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
805
Medicare Part D claims · 64 beneficiaries · Adult Health Clinical Nurse Specialist avg: 1K

What the federal data shows

CHRISTEN LAMBERTI, APN filed 805 Medicare Part D claims in 2023 as a Adult Health Clinical Nurse Specialist in HOFFMAN ESTATES, Illinois.

805
Part D claims, 2023

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.

CHRISTEN LAMBERTI, APN's Medicare Part D volume vs every U.S. prescriber

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

805 Top 27% higher than 73% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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 CHRISTEN LAMBERTI, APN?

Quality data not reported

NPI registry status

Active

Issued 06/10/2011

NPI 1629363353

Primary specialty

Adult Health Clinical Nurse Specialist

Niche

1,375 US NPIs in this specialty

Medicare Part D claims

805 26% vs specialty avg

2023 prescription claims

Specialty avg: 1,088

Specialty distribution in Illinois

How Adult Health Clinical Nurse Specialist compares to other specialties among Illinois providers

Illinois providers

Adult Health Clinical Nurse Specialist share within Illinois

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

Specialty board-certification context

Estimated specialty board-certified rate — Adult Health Clinical Nurse Specialist (ABMS / AOA reference)

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

Est. board-certified rate (Adult Health Clinical Nurse Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Health Clinical Nurse 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).

CHRISTEN LAMBERTI, APN is a Adult Health Clinical Nurse Specialist provider practicing in HOFFMAN ESTATES, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APN. NPI: 1629363353. 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.

CHRISTEN LAMBERTI, APN appears in the CMS NPPES registry as a Adult Health Clinical Nurse Specialist provider holding APN credentials at 1585 N BARRINGTON ROAD, HOFFMAN ESTATES, IL, 60169, with a listed phone of (847) 490-8900. NPI 1629363353 was issued on 06/10/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LAMBERTI 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 805 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $42K in drug spend, with an opioid prescribing rate of 4.3%. 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.

Adult Health Clinical Nurse Specialist is a narrow specialty nationwide, with 1,375 enrolled providers across 49 states and an average of 1,088 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

1585 N BARRINGTON ROAD
HOFFMAN ESTATES, IL 60169

Provider Details

NPI 1629363353
Specialty Adult Health Clinical Nurse Specialist
Credentials APN
Gender Female
NPI Issued 06/10/2011

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 CHRISTEN LAMBERTI, APN. To verify CHRISTEN LAMBERTI, APN'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.

Medicare Part D Prescribing Data

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

805
Total Claims
$42K
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
808
Total Day Supply
15,145
Generic Drug Cost
$22K
Opioid Claims
35 (4.3% rate)
Antibiotic Claims
51

Patient Demographics

Average Patient Age
77.5 years
Avg HCC Risk Score
3.85
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
61
Warfarin Sodium
53
Potassium Chloride
33
Atorvastatin Calcium
29
Clotrimazole-Betamethasone
Clotrimazole/Betamethasone Dip
25
Furosemide
25
Gabapentin
25
Piperacillin-Tazobactam
Piperacillin Sodium/Tazobactam
24
Tamsulosin Hcl
23
Montelukast Sodium
18

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

Adult Health Clinical Nurse Specialist Overview

How CHRISTEN LAMBERTI, APN fits within the Adult Health Clinical Nurse Specialist landscape nationally.

1,375
Adult Health Clinical Nurse Specialist Providers in US
49
States with Adult Health Clinical Nurse Specialist
1,088
Avg Claims per Provider

CHRISTEN LAMBERTI, APN's 805 claims are below the specialty average of 1,088.

Nearby Adult Health Clinical Nurse Specialist Providers in Illinois

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

Compare Adult Health Clinical Nurse Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTEN LAMBERTI, APN's specialty?
CHRISTEN LAMBERTI, APN specializes in Adult Health Clinical Nurse Specialist and practices in HOFFMAN ESTATES, Illinois. Credentials: APN.
How much does CHRISTEN LAMBERTI, APN prescribe under Medicare Part D?
In 2023, CHRISTEN LAMBERTI, APN wrote 805 Medicare Part D claims totaling $42K in drug costs for 64 beneficiaries.
Where is CHRISTEN LAMBERTI, APN located?
CHRISTEN LAMBERTI, APN is located at 1585 N BARRINGTON ROAD, HOFFMAN ESTATES, IL, 60169. Phone: (847) 490-8900.
What is CHRISTEN LAMBERTI, APN's NPI number?
CHRISTEN LAMBERTI, APN's National Provider Identifier (NPI) is 1629363353, issued on 06/10/2011.
Does CHRISTEN LAMBERTI, APN prescribe opioids?
Yes, CHRISTEN LAMBERTI, APN had 35 opioid claims in 2023 with an opioid prescribing rate of 4.3%.
How many Adult Health Clinical Nurse Specialist providers are there in the US?
There are 1,375 Adult Health Clinical Nurse Specialist providers across 49 states in the US. The average Adult Health Clinical Nurse Specialist provider writes 1,088 Medicare Part D claims per year.
What drugs does CHRISTEN LAMBERTI, APN prescribe most often?
Based on 2023 Medicare Part D data, CHRISTEN LAMBERTI, APN's most frequently prescribed drugs include Levothyroxine Sodium, Warfarin Sodium, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTEN LAMBERTI, APN accept Medicare?
CHRISTEN LAMBERTI, APN appears in CMS Medicare data with 805 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTEN LAMBERTI, APN's credentials?
CHRISTEN LAMBERTI, APN's NPI is 1629363353 with credentials APN. 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