NPI registry status
Active
2026 NPPES data Pediatric Urology Physician NPI 1093177339 M.D.
Verify on CMS → Peter Cai, M.D.
Pediatric Urology Physician in Boston, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 349 in Pediatric Urology 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.
What the federal data shows
Peter Cai, M.D. is a Pediatric Urology Physician in Boston, Massachusetts, listed in the federal CMS National Provider Identifier registry.
- #297
- Pediatric Urology Physician rank among Massachusetts specialties
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.
CMS NPPES provider registry desk
NPI 1093177339 · Pediatric Urology Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1093177339
- ENUM-MID 2016
- TAX-TRACE 349
- RX-NONE No Part D
- BOOK-THIN 16 in Massachusetts
- PHOTO-ENUM Deepansh Dalela · 2016
◑
Board-eligible specialty (heuristic, not verified)
Peter Cai, M.D. 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 Peter Cai, M.D.?
Quality data not reportedPrimary specialty
Pediatric Urology Physician
Specialty distribution in Massachusetts
How Pediatric Urology Physician compares to other specialties among Massachusetts 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 Urology 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 | 1093177339 |
|---|---|
| Specialty | Pediatric Urology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/25/2016 |
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Peter Cai, M.D.. To verify Peter Cai, M.D.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Pediatric Urology Physician Overview
How Peter Cai, M.D. fits within the Pediatric Urology Physician landscape nationally.
349
Pediatric Urology Physician Providers in US
44
States with Pediatric Urology Physician
654
Avg Claims per Provider
Nationwide Pediatric Urology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Cai, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pediatric Urology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Cai.
One of 16 Pediatric Urology Physician providers enrolled in Massachusetts, 5 are shown here.
Megan Afeltra
Boston, MA
Dr. Hannah Crosby
PA-C
Boston, MA
Dr. Beth Drzewiecki
MD
Boston, MA
Dr. Julia Finkelstein
MD
Boston, MA
Dr. Melise Keays
MD
Boston, MA
Compare Pediatric Urology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Peter Cai, M.D.'s specialty? ▼
Peter Cai, M.D. specializes in Pediatric Urology Physician and practices in Boston, Massachusetts. Credentials: M.D..
Where is Peter Cai, M.D. located? ▼
Peter Cai, M.D. is located at 300 LONGWOOD AVE, Boston, MA, 02115. Phone: (617) 355-6000.
What is Peter Cai, M.D.'s NPI number? ▼
Peter Cai, M.D.'s National Provider Identifier (NPI) is 1093177339, issued on 03/25/2016.
How many Pediatric Urology Physician providers are there in the US? ▼
There are 349 Pediatric Urology Physician providers across 44 states in the US. The average Pediatric Urology Physician provider writes 654 Medicare Part D claims per year.
Does Peter Cai, M.D. accept Medicare? ▼
Peter Cai, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peter Cai, M.D.'s credentials? ▼
Peter Cai, M.D.'s NPI is 1093177339 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
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.
- 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
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 May 2026.