2026 NPPES data Glaucoma Specialist (Ophthalmology) Physician NPI 1912492836 MD
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TINA XIA, MD

Glaucoma Specialist (Ophthalmology) Physician in BALA CYNWYD, Pennsylvania. 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
429
Medicare Part D claims · 187 beneficiaries · Glaucoma Specialist (Ophthalmology) Physician avg: 3K
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
88.3352/100
▲ 5 pts above national avg 83.1 · [object Object]
Industry payments
$654
18 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: TINA XIA, MD is a Glaucoma Specialist (Ophthalmology) Physician ([object Object]) practicing in BALA CYNWYD, Pennsylvania with a Medicare Part D prescribing footprint of 429 claims across 187 beneficiaries — 31% brand-name prescribing . Their CMS MIPS Final Score of 88.3352/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $654 across 18 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: TINA XIA, MD reported a CMS MIPS final score of 88.3352 out of 100, above the 83.1 national average, and filed 429 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

TINA XIA, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

TINA XIA, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/22/2018

NPI 1912492836

Primary specialty

Glaucoma Specialist (Ophthalmology) Physician

Rare

354 US NPIs in this specialty

Medicare Part D claims

429 86% vs specialty avg

2023 prescription claims

Specialty avg: 2,962

MIPS final score

88.3352/100 5.235200000000006% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Pennsylvania

How Glaucoma Specialist (Ophthalmology) Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Glaucoma Specialist (Ophthalmology) Physician share within Pennsylvania

1. Glaucoma Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Glaucoma Specialist (Ophthalmology) Physician share within Pennsylvania

Medicare quality performance — MIPS

TINA XIA, MD's 2023 MIPS final score plotted against the Glaucoma Specialist (Ophthalmology) Physician national average

High performer (top quartile)
MIPS Final Score
88.3352/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 88.3352/100 vs national avg 83.1

0%100%National avg83%88.3%
MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 88.3352/100 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).

TINA XIA, MD is a Glaucoma Specialist (Ophthalmology) Physician provider practicing in BALA CYNWYD, Pennsylvania, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1912492836. 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.

TINA XIA, MD appears in the CMS NPPES registry as a Glaucoma Specialist (Ophthalmology) Physician provider holding MD credentials at 100 PRESIDENTIAL BLVD STE 200, BALA CYNWYD, PA, 19004, with a listed phone of (484) 434-2700. NPI 1912492836 was issued on 06/22/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what XIA 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 429 prescription claims written by this provider, covering 187 Medicare beneficiaries and totaling roughly $37K in drug spend, split 31% brand-name and 69% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88.3352/100 for the 2023 performance year (Quality 91.6742, Cost 69.443), compared with the national average of 83.1.

Glaucoma Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 354 enrolled providers across 42 states and an average of 2,962 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

100 PRESIDENTIAL BLVD STE 200
BALA CYNWYD, PA 19004

Provider Details

NPI 1912492836
Specialty Glaucoma Specialist (Ophthalmology) Physician
Credentials MD
Gender Female
NPI Issued 06/22/2018

CMS Quality Score (MIPS)

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

88.3352
Final Score
Avg: 83.1
91.6742
Quality
69.443
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where TINA XIA, 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.

OPHTHALMIC PARTNERS PC
MARLTON, NJ
WILLS EYE OPHTHALMOLOGY CLINIC, INC
PHILADELPHIA, PA

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 TINA XIA, MD. Source: openpaymentsdata.cms.gov.

Total received

$654

Largest payer

Glaukos Corporation

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.

License & disciplinary context — Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to TINA XIA, MD. To verify TINA XIA, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

TINA XIA, MD — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 429 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.

429
Total Claims
$37K
Total Drug Cost
187
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
658
Total Day Supply
18,299
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$29K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
75.7 years
Avg HCC Risk Score
1.28
Gender Split
61% female / 39% male
Age Distribution
<65: 12, 65-74: 74, 75-84: 70, 85+: 31

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
78
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
69
Brimonidine Tartrate
63
Prednisolone Acetate
41
Dorzolamide Hcl
21
Timolol Maleate
21
Vyzulta
Latanoprostene Bunod
20
Lumigan
Bimatoprost
17
Ofloxacin
14

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

Glaucoma Specialist (Ophthalmology) Physician Overview

How TINA XIA, MD fits within the Glaucoma Specialist (Ophthalmology) Physician landscape nationally.

354
Glaucoma Specialist (Ophthalmology) Physician Providers in US
42
States with Glaucoma Specialist (Ophthalmology) Physician
2,962
Avg Claims per Provider

TINA XIA, MD's 429 claims are below the specialty average of 2,962.

Nearby Glaucoma Specialist (Ophthalmology) Physician Providers in Pennsylvania

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

Compare Glaucoma Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TINA XIA, MD's specialty?
TINA XIA, MD specializes in Glaucoma Specialist (Ophthalmology) Physician and practices in BALA CYNWYD, Pennsylvania. Credentials: MD.
How much does TINA XIA, MD prescribe under Medicare Part D?
In 2023, TINA XIA, MD wrote 429 Medicare Part D claims totaling $37K in drug costs for 187 beneficiaries.
What is TINA XIA, MD's Medicare quality score?
TINA XIA, MD has a CMS MIPS Final Score of 88.3352/100 (Quality: 91.6742, Cost: 69.443). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is TINA XIA, MD located?
TINA XIA, MD is located at 100 PRESIDENTIAL BLVD STE 200, BALA CYNWYD, PA, 19004. Phone: (484) 434-2700.
What is TINA XIA, MD's NPI number?
TINA XIA, MD's National Provider Identifier (NPI) is 1912492836, issued on 06/22/2018.
Does TINA XIA, MD prescribe more brand-name or generic drugs?
TINA XIA, MD's prescribing is 31% brand-name and 69% generic drugs by claim count, with $29K in brand drug costs.
How many Glaucoma Specialist (Ophthalmology) Physician providers are there in the US?
There are 354 Glaucoma Specialist (Ophthalmology) Physician providers across 42 states in the US. The average Glaucoma Specialist (Ophthalmology) Physician provider writes 2,962 Medicare Part D claims per year.
What drugs does TINA XIA, MD prescribe most often?
Based on 2023 Medicare Part D data, TINA XIA, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TINA XIA, MD accept Medicare?
TINA XIA, MD appears in CMS Medicare data with 429 Part D claims and 187 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TINA XIA, MD's credentials?
TINA XIA, MD's NPI is 1912492836 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.
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