NPI registry status
Active
2026 NPPES data Pediatric Nephrology Physician NPI 1427223114 MD
Verify on CMS → Stephen Cha, MD
Pediatric Nephrology Physician in Hershey, 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 753 in Pediatric Nephrology 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
12
Medicare Part D claims · Pediatric Nephrology Physician avg: 91
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Stephen Cha, MD filed 12 Medicare Part D claims in 2024 as a Pediatric Nephrology Physician in Hershey, Pennsylvania.
- 12
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥0th
- 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 Stephen Cha, 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 1427223114), first enumerated 04/24/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 12 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Pennsylvania statewide board action statistics are published annually — these figures describe aggregate state activity, not Stephen Cha, 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.
Compare Cha with other Pediatric Nephrology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Pennsylvania
- Dr. Sandra Amaral, MD, MHS Philadelphia, PA
- Dr. Melissa Anslow, M.D. Pittsburgh, PA
- Carlton Bates Pittsburgh, PA
- Dr. Prasad Bichu, MD Beaver, PA
- Dr. Glenn Bock, M.D. Danville, PA
- Dr. Neziha Celebi, M.D. Philadelphia, PA
Other specialties in Hershey: Student in an Organized Health Care Education/Training Program (848) · Physician Assistant (219) · Nurse Practitioner (180) · Internal Medicine Physician (180)
CMS NPPES provider registry desk
NPI 1427223114 · Pediatric Nephrology Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1427223114
- ENUM-MID 2008
- TAX-NARROW 753
- RX-TRACE 12
- BOOK-THIN 44 in Pennsylvania
- PHOTO-ENUM Laura Malaga Dieguez… · 2008
Stephen Cha, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
12 ≥ 0th percentile 0% 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 certification likely (heuristic, not verified)
Stephen Cha, MD 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 Stephen Cha, MD?
Quality data not reportedPrimary specialty
Pediatric Nephrology Physician
Medicare Part D claims
12 87% vs specialty avg
Specialty distribution in Pennsylvania
How Pediatric Nephrology 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 Pediatric Nephrology 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 | 1427223114 |
|---|---|
| Specialty | Pediatric Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/24/2008 |
Hospital and facility affiliations
Facilities where Stephen Cha, 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.
The Milton S Hershey Medical Center Physicians Group
Hershey, 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).
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 Stephen Cha, MD. To verify Stephen Cha, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
12
Total Claims
$92
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12
- Total Day Supply
- 275
- Brand Drug Cost
- $0
- Generic Drug Cost
- $92
Patient Demographics
- Average Patient Age
- 31.0 years
- Avg HCC Risk Score
- 3.77
Pediatric Nephrology Physician Overview
How Stephen Cha, MD fits within the Pediatric Nephrology Physician landscape nationally.
753
Pediatric Nephrology Physician Providers in US
50
States with Pediatric Nephrology Physician
91
Avg Claims per Provider
Stephen Cha, MD's 12 claims are below the specialty average of 91.
Nationwide Pediatric Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Cha, 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 Pediatric Nephrology Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Cha.
One of 44 Pediatric Nephrology Physician providers enrolled in Pennsylvania, 11 are shown on this page.
Dr. Susan Conley
MD
Philadelphia, PA
Dr. Hailey Connolly
MD
Philadelphia, PA
Dr. Brenda Cooperstone
MD
Bryn Mawr, PA
Dr. Lawrence Copelovitch
M.D.
Philadelphia, PA
Dr. Christine Crana
M.D.
Pittsburgh, PA
Compare Pediatric Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Stephen Cha, MD's specialty? ▼
Stephen Cha, MD specializes in Pediatric Nephrology Physician and practices in Hershey, Pennsylvania. Credentials: MD.
How much does Stephen Cha, MD prescribe under Medicare Part D? ▼
In 2024, Stephen Cha, MD wrote 12 Medicare Part D claims totaling $92 in drug costs for N/A beneficiaries.
Where is Stephen Cha, MD located? ▼
Stephen Cha, MD is located at 500 UNIVERSITY DR, Hershey, PA, 17033. Phone: (800) 243-1455.
What is Stephen Cha, MD's NPI number? ▼
Stephen Cha, MD's National Provider Identifier (NPI) is 1427223114, issued on 04/24/2008.
How many Pediatric Nephrology Physician providers are there in the US? ▼
There are 753 Pediatric Nephrology Physician providers across 50 states in the US. The average Pediatric Nephrology Physician provider writes 91 Medicare Part D claims per year.
Does Stephen Cha, MD accept Medicare? ▼
Stephen Cha, MD appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Cha, MD's credentials? ▼
Stephen Cha, MD's NPI is 1427223114 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.