2026 NPPES data Nephrology Physician NPI 1063668895 M.D.
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ALBERT SIU, M.D.

Nephrology Physician in BERGENFIELD, New Jersey. 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
2K
Medicare Part D claims · 181 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ALBERT SIU, M.D. filed 1,695 Medicare Part D claims in 2023 as a Nephrology Physician in BERGENFIELD, New Jersey, prescribing 91% generic.

2K
Part D claims, 2023
91%
generic prescribing

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.

ALBERT SIU, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,695 Top 18% higher than 82% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 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-eligible specialty (heuristic — not verified)

ALBERT SIU, 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 ALBERT SIU, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/12/2008

NPI 1063668895

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

1,695 17% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in New Jersey

How Nephrology Physician compares to other specialties among New Jersey providers

New Jersey providers

Nephrology Physician share within New Jersey

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

Specialty board-certification context

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

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

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

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

ALBERT SIU, M.D. is a Nephrology Physician provider practicing in BERGENFIELD, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1063668895. 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.

ALBERT SIU, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 10 PALISADE AVE, BERGENFIELD, NJ, 07621, with a listed phone of (201) 385-9810. NPI 1063668895 was issued on 08/12/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SIU 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 1,695 prescription claims written by this provider, covering 181 Medicare beneficiaries and totaling roughly $214K in drug spend, split 9% brand-name and 91% 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

10 PALISADE AVE
BERGENFIELD, NJ 07621

Provider Details

NPI 1063668895
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 08/12/2008

Brand vs generic prescribing mix · Generic-heavy

ALBERT SIU, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,695 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.

1,695
Total Claims
$214K
Total Drug Cost
181
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,253
Total Day Supply
124,270
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$157K
Generic Drug Cost
$55K
Antibiotic Claims
23

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.29
Gender Split
57% female / 43% 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
Atorvastatin Calcium
148
Losartan Potassium
125
Amlodipine Besylate
89
Simvastatin
61
Allopurinol
60
Metoprolol Succinate
58
Rosuvastatin Calcium
51
Losartan-Hydrochlorothiazide
Losartan/Hydrochlorothiazide
43
Metformin Hcl Er
Metformin Hcl
41
Torsemide
38

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

Nephrology Physician Overview

How ALBERT SIU, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

ALBERT SIU, M.D.'s 1,695 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as SIU.

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

Frequently Asked Questions

What is ALBERT SIU, M.D.'s specialty?
ALBERT SIU, M.D. specializes in Nephrology Physician and practices in BERGENFIELD, New Jersey. Credentials: M.D..
How much does ALBERT SIU, M.D. prescribe under Medicare Part D?
In 2023, ALBERT SIU, M.D. wrote 1,695 Medicare Part D claims totaling $214K in drug costs for 181 beneficiaries.
Where is ALBERT SIU, M.D. located?
ALBERT SIU, M.D. is located at 10 PALISADE AVE, BERGENFIELD, NJ, 07621. Phone: (201) 385-9810.
What is ALBERT SIU, M.D.'s NPI number?
ALBERT SIU, M.D.'s National Provider Identifier (NPI) is 1063668895, issued on 08/12/2008.
Does ALBERT SIU, M.D. prescribe more brand-name or generic drugs?
ALBERT SIU, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $157K in brand drug costs.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does ALBERT SIU, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ALBERT SIU, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALBERT SIU, M.D. accept Medicare?
ALBERT SIU, M.D. appears in CMS Medicare data with 1,695 Part D claims and 181 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALBERT SIU, M.D.'s credentials?
ALBERT SIU, M.D.'s NPI is 1063668895 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

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