2026 NPPES data Pediatric Nephrology Physician NPI 1598785479 MD
Verify on CMS →

ALEX CONSTANTINESCU, MD

Pediatric Nephrology Physician in HOLLYWOOD, Florida. 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
27
Medicare Part D claims · Pediatric Nephrology Physician avg: 97
Generic prescribing
44%
generic claims · 56% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ALEX CONSTANTINESCU, MD filed 27 Medicare Part D claims in 2023 as a Pediatric Nephrology Physician in HOLLYWOOD, Florida, prescribing 44% generic.

27
Part D claims, 2023
44%
generic prescribing
Likely
board-certified (heuristic)

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.

ALEX CONSTANTINESCU, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

27 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

ALEX CONSTANTINESCU, 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 ALEX CONSTANTINESCU, MD?

Quality data not reported

NPI registry status

Active

Issued 07/20/2006

NPI 1598785479

Primary specialty

Pediatric Nephrology Physician

Niche

723 US NPIs in this specialty

Medicare Part D claims

27 72% vs specialty avg

2023 prescription claims

Specialty avg: 97

Specialty distribution in Florida

How Pediatric Nephrology Physician compares to other specialties among Florida providers

Florida providers

Pediatric Nephrology Physician share within Florida

1. Pediatric Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatric Nephrology Physician share within Florida

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Pediatric Nephrology 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).

ALEX CONSTANTINESCU, MD is a Pediatric Nephrology Physician provider practicing in HOLLYWOOD, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1598785479. 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.

ALEX CONSTANTINESCU, MD appears in the CMS NPPES registry as a Pediatric Nephrology Physician provider holding MD credentials at 1131 N 35TH AVE STE 210, HOLLYWOOD, FL, 33021, with a listed phone of (954) 265-9344. NPI 1598785479 was issued on 07/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CONSTANTINESCU 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 27 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $13K in drug spend, split 56% brand-name and 44% 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.

Pediatric Nephrology Physician is a narrow specialty nationwide, with 723 enrolled providers across 50 states and an average of 97 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

1131 N 35TH AVE STE 210
HOLLYWOOD, FL 33021

Provider Details

NPI 1598785479
Specialty Pediatric Nephrology Physician
Credentials MD
Gender Male
NPI Issued 07/20/2006

Hospital and facility affiliations

Facilities where ALEX CONSTANTINESCU, 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.

SOUTH BROWARD HOSPITAL DISTRICT
MIRAMAR, FL

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 — Florida FLDOH 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 ~75K Florida medical licensees in 2023 — they are NOT specific to ALEX CONSTANTINESCU, MD. To verify ALEX CONSTANTINESCU, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

ALEX CONSTANTINESCU, MD — brand share 56.0%
Specialty average (est.)

56% brand-name claims vs 44% generic, on 27 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.

27
Total Claims
$13K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
28
Total Day Supply
692
Brand vs Generic
56% brand / 44% generic
Brand Drug Cost
$10K

Patient Demographics

Average Patient Age
4.0 years
Avg HCC Risk Score
8.40

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Katerzia
Amlodipine Benzoate
12

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

Pediatric Nephrology Physician Overview

How ALEX CONSTANTINESCU, MD fits within the Pediatric Nephrology Physician landscape nationally.

723
Pediatric Nephrology Physician Providers in US
50
States with Pediatric Nephrology Physician
97
Avg Claims per Provider

ALEX CONSTANTINESCU, MD's 27 claims are below the specialty average of 97.

Nearby Pediatric Nephrology Physician Providers in Florida

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

Compare Pediatric Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALEX CONSTANTINESCU, MD's specialty?
ALEX CONSTANTINESCU, MD specializes in Pediatric Nephrology Physician and practices in HOLLYWOOD, Florida. Credentials: MD.
How much does ALEX CONSTANTINESCU, MD prescribe under Medicare Part D?
In 2023, ALEX CONSTANTINESCU, MD wrote 27 Medicare Part D claims totaling $13K in drug costs for N/A beneficiaries.
Where is ALEX CONSTANTINESCU, MD located?
ALEX CONSTANTINESCU, MD is located at 1131 N 35TH AVE STE 210, HOLLYWOOD, FL, 33021. Phone: (954) 265-9344.
What is ALEX CONSTANTINESCU, MD's NPI number?
ALEX CONSTANTINESCU, MD's National Provider Identifier (NPI) is 1598785479, issued on 07/20/2006.
Does ALEX CONSTANTINESCU, MD prescribe more brand-name or generic drugs?
ALEX CONSTANTINESCU, MD's prescribing is 56% brand-name and 44% generic drugs by claim count, with $10K in brand drug costs.
How many Pediatric Nephrology Physician providers are there in the US?
There are 723 Pediatric Nephrology Physician providers across 50 states in the US. The average Pediatric Nephrology Physician provider writes 97 Medicare Part D claims per year.
What drugs does ALEX CONSTANTINESCU, MD prescribe most often?
Based on 2023 Medicare Part D data, ALEX CONSTANTINESCU, MD's most frequently prescribed drugs include Katerzia. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALEX CONSTANTINESCU, MD accept Medicare?
ALEX CONSTANTINESCU, MD appears in CMS Medicare data with 27 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEX CONSTANTINESCU, MD's credentials?
ALEX CONSTANTINESCU, MD's NPI is 1598785479 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.
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