2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1679577092 M.D.
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ZORAYDA LEE-LLACER, M.D.

Critical Care Medicine (Internal Medicine) Physician in STEVENSVILLE, Maryland. 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
203
Medicare Part D claims · 14 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ZORAYDA LEE-LLACER, M.D. filed 203 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in STEVENSVILLE, Maryland, prescribing 83% generic.

203
Part D claims, 2023
83%
generic prescribing
Likely
board-certified (heuristic)

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.

ZORAYDA LEE-LLACER, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

203 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

Board certification likely (heuristic — not verified)

ZORAYDA LEE-LLACER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ZORAYDA LEE-LLACER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/13/2005

NPI 1679577092

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

203 81% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in Maryland

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Maryland providers

Maryland providers

Critical Care Medicine (Internal Medicine) Physician share within Maryland

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — 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).

ZORAYDA LEE-LLACER, M.D. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D. credentials at 818 BAYSIDE DR, STEVENSVILLE, MD, 21666, with a listed phone of (202) 239-5888. NPI 1679577092 was issued on 06/13/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEE-LLACER 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 203 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $30K in drug spend, split 17% brand-name and 83% 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.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

818 BAYSIDE DR
STEVENSVILLE, MD 21666

Provider Details

NPI 1679577092
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 06/13/2005

Hospital and facility affiliations

Facilities where ZORAYDA LEE-LLACER, 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.

LEE-LLACER AND LEE-LLACER, MD PA
STEVENSVILLE, MD

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

Brand vs generic prescribing mix · Typical

ZORAYDA LEE-LLACER, M.D. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 203 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.

203
Total Claims
$30K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
313
Total Day Supply
9,050
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$25K
Generic Drug Cost
$5K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
80.1 years
Avg HCC Risk Score
3.17

Top Prescribed Drugs (Medicare Part D)

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

What ZORAYDA LEE-LLACER, 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
Atorvastatin Calcium
18
Levetiracetam
16
Hydralazine Hcl
13
Labetalol Hcl
13
Lamotrigine
13
Lisinopril
13

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

Critical Care Medicine (Internal Medicine) Physician Overview

How ZORAYDA LEE-LLACER, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

ZORAYDA LEE-LLACER, M.D.'s 203 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Maryland

Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as LEE-LLACER.

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ZORAYDA LEE-LLACER, M.D.'s specialty?
ZORAYDA LEE-LLACER, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in STEVENSVILLE, Maryland. Credentials: M.D..
How much does ZORAYDA LEE-LLACER, M.D. prescribe under Medicare Part D?
In 2023, ZORAYDA LEE-LLACER, M.D. wrote 203 Medicare Part D claims totaling $30K in drug costs for 14 beneficiaries.
Where is ZORAYDA LEE-LLACER, M.D. located?
ZORAYDA LEE-LLACER, M.D. is located at 818 BAYSIDE DR, STEVENSVILLE, MD, 21666. Phone: (202) 239-5888.
What is ZORAYDA LEE-LLACER, M.D.'s NPI number?
ZORAYDA LEE-LLACER, M.D.'s National Provider Identifier (NPI) is 1679577092, issued on 06/13/2005.
Does ZORAYDA LEE-LLACER, M.D. prescribe more brand-name or generic drugs?
ZORAYDA LEE-LLACER, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $25K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does ZORAYDA LEE-LLACER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ZORAYDA LEE-LLACER, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levetiracetam, Hydralazine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZORAYDA LEE-LLACER, M.D. accept Medicare?
ZORAYDA LEE-LLACER, M.D. appears in CMS Medicare data with 203 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZORAYDA LEE-LLACER, M.D.'s credentials?
ZORAYDA LEE-LLACER, M.D.'s NPI is 1679577092 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