2026 NPPES data Infectious Disease Physician NPI 1750335253 M.D.
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Evelyn Tiu, M.D.

Infectious Disease Physician in Toms River, New Jersey. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
105
Medicare Part D claims · 67 beneficiaries · Infectious Disease Physician avg: 816
MIPS score
33.7/100
▼ 49 pts below national avg 83.1 · Below average
Industry payments
$100.09
6 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Evelyn Tiu, M.D. reported a CMS MIPS final score of 33.7/100 - below the 83.1 national average - and filed 105 Medicare Part D claims in 2023.

33.7/100
MIPS score · -49 vs avg
105
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.

Evelyn Tiu, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

34 3rd percentile higher than 3% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). This entry sits in this band. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Evelyn Tiu, M.D. sits

This provider among infectious disease physician peers

Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Evelyn Tiu, M.D. writes more Part D claims than 18% of them and scores higher on MIPS quality than 3% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 15Evelyn Tiu, M.D.-Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 3
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Evelyn Tiu, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Evelyn Tiu, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Evelyn Tiu, M.D.?

Below national average

NPI registry status

Active

Issued 05/19/2006

NPI 1750335253

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

105 87% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

33.7/100 49.4 pts vs avg

Below average band

vs 83.1 national avg

Specialty distribution in New Jersey

How Infectious Disease Physician compares to other specialties among New Jersey providers

New Jersey providers

Largest specialties in New Jersey (% of in-state providers)

Mental Health Counselor - 6.2%Mental Health Counselor6.2%Physical Therapist - 5.9%Physical Therapist5.9%Clinical Social Worker - 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program - 5.4%Student in an Organized Health Care Education/Training Program5.4%Pharmacist - 5%Pharmacist5%Internal Medicine Physician - 3.1%Internal Medicine Physician3.1%Infectious Disease Physician - 0.2%Infectious Disease Physician0.2%
Largest specialties in New Jersey (% of in-state providers)

Medicare quality performance, MIPS

Evelyn Tiu, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average

Below national average
MIPS Final Score
33.7/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) - 33.7/100 vs national avg 83.1

0%100%National avg83%33.7%
MIPS final score (Infectious Disease Physician) - 33.7/100 vs national avg 83.1

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).

Evelyn Tiu, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 1163 ROUTE 37 W STE A1, Toms River, NJ, 08755, with a listed phone of (732) 505-4007. NPI 1750335253 was issued on 05/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Tiu 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 105 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $20K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 33.7/100 for the 2023 performance year (Quality 41.2, Cost 35.1), compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

1163 ROUTE 37 W STE A1
Toms River, NJ 08755

Provider Details

NPI 1750335253
Specialty Infectious Disease Physician
Credentials M.D.
Gender Female
NPI Issued 05/19/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

33.683
Final Score
Avg: 83.1
41.2067
Quality
35.0927
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Evelyn Tiu, 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.

Olivia T. Ortiz MD PA
Toms River, NJ

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 Evelyn Tiu, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$100

Largest payer

ABBVIE INC.

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.

105
Total Claims
$20K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
107
Total Day Supply
1,314
Generic Drug Cost
$3K
Antibiotic Claims
94

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
2.34
Gender Split
43% female / 57% 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
Ciprofloxacin Hcl
20
Cephalexin
16

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

Infectious Disease Physician Overview

How Evelyn Tiu, M.D. fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

Evelyn Tiu, M.D.'s 105 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Tiu.

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the New Jersey medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Infectious Disease Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Evelyn Tiu, M.D.'s specialty?
Evelyn Tiu, M.D. specializes in Infectious Disease Physician and practices in Toms River, New Jersey. Credentials: M.D..
How much does Evelyn Tiu, M.D. prescribe under Medicare Part D?
In 2023, Evelyn Tiu, M.D. wrote 105 Medicare Part D claims totaling $20K in drug costs for 67 beneficiaries.
What is Evelyn Tiu, M.D.'s Medicare quality score?
Evelyn Tiu, M.D. has a CMS MIPS Final Score of 33.7/100 (Quality: 41.2, Cost: 35.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Evelyn Tiu, M.D. located?
Evelyn Tiu, M.D. is located at 1163 ROUTE 37 W STE A1, Toms River, NJ, 08755. Phone: (732) 505-4007.
What is Evelyn Tiu, M.D.'s NPI number?
Evelyn Tiu, M.D.'s National Provider Identifier (NPI) is 1750335253, issued on 05/19/2006.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Evelyn Tiu, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Evelyn Tiu, M.D.'s most frequently prescribed drugs include Ciprofloxacin Hcl, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Evelyn Tiu, M.D. accept Medicare?
Evelyn Tiu, M.D. appears in CMS Medicare data with 105 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Evelyn Tiu, M.D.'s credentials?
Evelyn Tiu, M.D.'s NPI is 1750335253 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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

Compiled from official public sources by the PlainDoctor editorial team.