2026 NPPES data Otolaryngology Physician NPI 1902264005 MD
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MELISSA LIU, MD

Otolaryngology Physician in BALTIMORE, 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
89
Medicare Part D claims · 47 beneficiaries · Otolaryngology Physician avg: 509
Industry payments
$1.4K
10 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MELISSA LIU, MD filed 89 Medicare Part D claims in 2023 as a Otolaryngology Physician in BALTIMORE, Maryland.

89
Part D claims, 2023
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.

MELISSA LIU, MD's Medicare Part D volume vs every U.S. prescriber

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

89 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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)

MELISSA LIU, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 MELISSA LIU, MD?

Quality data not reported

NPI registry status

Active

Issued 02/03/2016

NPI 1902264005

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

89 83% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in Maryland

How Otolaryngology Physician compares to other specialties among Maryland providers

Maryland providers

Otolaryngology Physician share within Maryland

1. Otolaryngology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Otolaryngology Physician share within Maryland

Specialty board-certification context

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

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

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

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

MELISSA LIU, MD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD credentials at 6565 N CHARLES ST STE 601, BALTIMORE, MD, 21204, with a listed phone of (410) 821-5151. NPI 1902264005 was issued on 02/03/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIU 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 89 prescription claims written by this provider, covering 47 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 27.0%. 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.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

6565 N CHARLES ST STE 601
BALTIMORE, MD 21204

Provider Details

NPI 1902264005
Specialty Otolaryngology Physician
Credentials MD
Gender Female
NPI Issued 02/03/2016

Hospital and facility affiliations

Facilities where MELISSA LIU, MD 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.

CENTERS FOR ADVANCED ENT CARE LLC
BALTIMORE, MD
GREATER BALTIMORE MEDICAL CENTER INC
BALTIMORE, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MELISSA LIU, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.4K

Largest payer

Neurent Medical Limited

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

89
Total Claims
$1K
Total Drug Cost
47
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
95
Total Day Supply
1,058
Generic Drug Cost
$981
Opioid Claims
24 (27.0% rate)
Antibiotic Claims
21

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.18
Gender Split
38% female / 62% 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
Oxycodone Hcl
22
Cefadroxil
13

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

Otolaryngology Physician Overview

How MELISSA LIU, MD fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

MELISSA LIU, MD's 89 claims are below the specialty average of 509.

Nearby Otolaryngology Physician Providers in Maryland

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

Compare Otolaryngology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MELISSA LIU, MD's specialty?
MELISSA LIU, MD specializes in Otolaryngology Physician and practices in BALTIMORE, Maryland. Credentials: MD.
How much does MELISSA LIU, MD prescribe under Medicare Part D?
In 2023, MELISSA LIU, MD wrote 89 Medicare Part D claims totaling $1K in drug costs for 47 beneficiaries.
Where is MELISSA LIU, MD located?
MELISSA LIU, MD is located at 6565 N CHARLES ST STE 601, BALTIMORE, MD, 21204. Phone: (410) 821-5151.
What is MELISSA LIU, MD's NPI number?
MELISSA LIU, MD's National Provider Identifier (NPI) is 1902264005, issued on 02/03/2016.
Does MELISSA LIU, MD prescribe opioids?
Yes, MELISSA LIU, MD had 24 opioid claims in 2023 with an opioid prescribing rate of 27.0%.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does MELISSA LIU, MD prescribe most often?
Based on 2023 Medicare Part D data, MELISSA LIU, MD's most frequently prescribed drugs include Oxycodone Hcl, Cefadroxil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA LIU, MD accept Medicare?
MELISSA LIU, MD appears in CMS Medicare data with 89 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA LIU, MD's credentials?
MELISSA LIU, MD's NPI is 1902264005 with credentials MD. 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