NPI registry status
Active
2026 NPPES data Transplant Surgery Physician NPI 1215190228 MD
Verify on CMS → Patty Liu, MD
Transplant Surgery Physician in Allentown, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,051 in Transplant Surgery 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
561
Medicare Part D claims · 149 beneficiaries · Transplant Surgery Physician avg: 283
Generic prescribing
91%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Patty Liu, MD filed 561 Medicare Part D claims in 2024 as a Transplant Surgery Physician in Allentown, Pennsylvania, prescribing 91% generic.
- 561
- Part D claims, 2024
- 91%
- generic prescribing
- ≥65th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Patty Liu, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1215190228), first enumerated 07/09/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 561 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
Pennsylvania statewide board action statistics are published annually — these figures describe aggregate state activity, not Patty Liu, MD's individual license status. Verify directly with the state medical board.
Source: PA-BOM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1215190228 · Transplant Surgery Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1215190228
- ENUM-MID 2008
- TAX-NARROW 1,051
- RX-LIGHT 561
- BOOK-THIN 66 in Pennsylvania
- PHOTO-ENUM Vikram Wadhera, M.D. · 2008
Patty Liu, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
561 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Patty Liu, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Patty Liu, MD?
Quality data not reportedPrimary specialty
Transplant Surgery Physician
Medicare Part D claims
561 98% vs specialty avg
Specialty distribution in Pennsylvania
How Transplant Surgery Physician compares to other specialties among Pennsylvania providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Transplant Surgery Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1215190228 |
|---|---|
| Specialty | Transplant Surgery Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/09/2008 |
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 Patty Liu, MD. To verify Patty Liu, 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 · Generic-heavy
Patty Liu, MD - brand share 2.0%
Transplant Surgery Physician average
2% brand-name claims vs 91% generic, on 561 2024 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 2024.
561
Total Claims
$114K
Total Drug Cost
149
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 904.867
- Total Day Supply
- 25,955
- Brand vs Generic
- 2% brand / 91% generic
- Brand Drug Cost
- $79K
- Generic Drug Cost
- $33K
- Opioid Claims
- 17 (3.0% rate)
- Antibiotic Claims
- 84
Patient Demographics
- Average Patient Age
- 60.6 years
- Avg HCC Risk Score
- 6.24
- Gender Split
- 32% female / 68% male
- Age Distribution
- <65: 79, 65-74: 48, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Patty Liu, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
71 claims
- Prednisone
Prednisone
64 claims
- Tamsulosin Hcl
Tamsulosin Hcl
61 claims
- Famotidine
Famotidine
39 claims
- Valganciclovir Hcl
Valganciclovir Hcl
33 claims
- Tacrolimus 24
Tacrolimus
24 claims
- Single Use Swab 17
Single Use Swab
17 claims
- Mycophenolic Acid 15
Mycophenolic Acid
15 claims
| Drug | Claims |
|---|---|
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 71 |
| Prednisone | 64 |
| Tamsulosin Hcl | 61 |
| Famotidine | 39 |
| Valganciclovir Hcl | 33 |
| Tacrolimus | 24 |
| Single Use Swab Alcohol Antiseptic Pads | 17 |
| Mycophenolic Acid Mycophenolate Sodium | 15 |
| Sirolimus | 14 |
| Tramadol Hcl | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Transplant Surgery Physician Overview
How Patty Liu, MD fits within the Transplant Surgery Physician landscape nationally.
1,051
Transplant Surgery Physician Providers in US
48
States with Transplant Surgery Physician
283
Avg Claims per Provider
Patty Liu, MD's 561 claims are above the specialty average of 283.
Nationwide Transplant Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Liu, both outside Pennsylvania so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Transplant Surgery Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Liu.
One of 66 Transplant Surgery Physician providers enrolled in Pennsylvania, 5 are shown here.
Mohamed Al-Askari
Pittsburgh, PA
Dr. Kenneth Andreoni
M.D.
Philadelphia, PA
Dr. Francisco Badosa
M.D.
Wynnewood, PA
Dr. Adam Bodzin
M.D.
Philadelphia, PA
Geoffrey Bond
Pittsburgh, PA
Compare Transplant Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Patty Liu, MD's specialty? ▼
Patty Liu, MD specializes in Transplant Surgery Physician and practices in Allentown, Pennsylvania. Credentials: MD.
How much does Patty Liu, MD prescribe under Medicare Part D? ▼
In 2024, Patty Liu, MD wrote 561 Medicare Part D claims totaling $114K in drug costs for 149 beneficiaries.
Where is Patty Liu, MD located? ▼
Patty Liu, MD is located at 1250 S CEDAR CREST BLVD, Allentown, PA, 18103. Phone: (610) 402-8506.
What is Patty Liu, MD's NPI number? ▼
Patty Liu, MD's National Provider Identifier (NPI) is 1215190228, issued on 07/09/2008.
Does Patty Liu, MD prescribe more brand-name or generic drugs? ▼
Patty Liu, MD's prescribing is 2% brand-name and 91% generic drugs by claim count, with $79K in brand drug costs.
Does Patty Liu, MD prescribe opioids? ▼
Yes, Patty Liu, MD had 17 opioid claims in 2024 with an opioid prescribing rate of 3.0%.
How many Transplant Surgery Physician providers are there in the US? ▼
There are 1,051 Transplant Surgery Physician providers across 48 states in the US. The average Transplant Surgery Physician provider writes 283 Medicare Part D claims per year.
What drugs does Patty Liu, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Patty Liu, MD's most frequently prescribed drugs include Sulfamethoxazole-Trimethoprim, Prednisone, Tamsulosin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patty Liu, MD accept Medicare? ▼
Patty Liu, MD appears in CMS Medicare data with 561 Part D claims and 149 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patty Liu, MD's credentials? ▼
Patty Liu, MD's NPI is 1215190228 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.