2026 NPPES data Urology Physician NPI 1932594132 M.D., PH.D.
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ANDREW CHANG, M.D., PH.D.

Urology Physician in HARTFORD, Connecticut. 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
169
Medicare Part D claims · 110 beneficiaries · Urology Physician avg: 1K
Industry payments
$937.63
35 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANDREW CHANG, M.D., PH.D. is a Urology Physician ([object Object]) practicing in HARTFORD, Connecticut with a Medicare Part D prescribing footprint of 169 claims across 110 beneficiaries . Industry payments of $937.63 across 35 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANDREW CHANG, M.D., PH.D. filed 169 Medicare Part D claims in 2023 across HARTFORD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ANDREW CHANG, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ANDREW CHANG, M.D., PH.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/03/2015

NPI 1932594132

Primary specialty

Urology Physician

Mid-sized

13,350 US NPIs in this specialty

Medicare Part D claims

169 87% vs specialty avg

2023 prescription claims

Specialty avg: 1,280

Specialty distribution in Connecticut

How Urology Physician compares to other specialties among Connecticut providers

Connecticut providers

Urology Physician share within Connecticut

1. Urology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urology Physician share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Urology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Urology Physician ABMS/AOA estimate

Est. board-certified rate (Urology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Urology Physician) — ABMS / AOA estimate

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).

ANDREW CHANG, M.D., PH.D. is a Urology Physician provider practicing in HARTFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., PH.D.. NPI: 1932594132. 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.

ANDREW CHANG, M.D., PH.D. appears in the CMS NPPES registry as a Urology Physician provider holding M.D., PH.D. credentials at 85 SEYMOUR ST STE 416, HARTFORD, CT, 06106, with a listed phone of (860) 947-8500. NPI 1932594132 was issued on 04/03/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHANG 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 169 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $21K in drug spend, with an opioid prescribing rate of 12.4%. 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.

Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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

85 SEYMOUR ST STE 416
HARTFORD, CT 06106

Provider Details

NPI 1932594132
Specialty Urology Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 04/03/2015

Hospital and facility affiliations

Facilities where ANDREW CHANG, M.D., PH.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.

HARTFORD HEALTHCARE MEDICAL GROUP SPECIALISTS PLLC
STORRS, CT
PRACTICE ASSOCIATES MEDICAL GROUP
MORRISTOWN, 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 ANDREW CHANG, M.D., PH.D.. Source: openpaymentsdata.cms.gov.

Total received

$938

Largest payer

Ferring Pharmaceuticals 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.

169
Total Claims
$21K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
275
Total Day Supply
6,096
Generic Drug Cost
$3K
Opioid Claims
21 (12.4% rate)
Antibiotic Claims
37

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
1.62
Gender Split
38% female / 62% 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
Tamsulosin Hcl
23
Oxycodone Hcl
20
Oxybutynin Chloride
19
Premarin
"Estrogens
N/A

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

Urology Physician Overview

How ANDREW CHANG, M.D., PH.D. fits within the Urology Physician landscape nationally.

13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider

ANDREW CHANG, M.D., PH.D.'s 169 claims are below the specialty average of 1,280.

Nearby Urology Physician Providers in Connecticut

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

Compare Urology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANDREW CHANG, M.D., PH.D.'s specialty?
ANDREW CHANG, M.D., PH.D. specializes in Urology Physician and practices in HARTFORD, Connecticut. Credentials: M.D., PH.D..
How much does ANDREW CHANG, M.D., PH.D. prescribe under Medicare Part D?
In 2023, ANDREW CHANG, M.D., PH.D. wrote 169 Medicare Part D claims totaling $21K in drug costs for 110 beneficiaries.
Where is ANDREW CHANG, M.D., PH.D. located?
ANDREW CHANG, M.D., PH.D. is located at 85 SEYMOUR ST STE 416, HARTFORD, CT, 06106. Phone: (860) 947-8500.
What is ANDREW CHANG, M.D., PH.D.'s NPI number?
ANDREW CHANG, M.D., PH.D.'s National Provider Identifier (NPI) is 1932594132, issued on 04/03/2015.
Does ANDREW CHANG, M.D., PH.D. prescribe opioids?
Yes, ANDREW CHANG, M.D., PH.D. had 21 opioid claims in 2023 with an opioid prescribing rate of 12.4%.
How many Urology Physician providers are there in the US?
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does ANDREW CHANG, M.D., PH.D. prescribe most often?
Based on 2023 Medicare Part D data, ANDREW CHANG, M.D., PH.D.'s most frequently prescribed drugs include Tamsulosin Hcl, Oxycodone Hcl, Oxybutynin Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANDREW CHANG, M.D., PH.D. accept Medicare?
ANDREW CHANG, M.D., PH.D. appears in CMS Medicare data with 169 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANDREW CHANG, M.D., PH.D.'s credentials?
ANDREW CHANG, M.D., PH.D.'s NPI is 1932594132 with credentials M.D., PH.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.
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