2026 NPPES data Rheumatology Physician NPI 1609362508 MD
Verify on CMS →

ARDY FENANDO, MD

Rheumatology Physician in GREEN BAY, Wisconsin. 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
474
Medicare Part D claims · 139 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
12 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ARDY FENANDO, MD filed 474 Medicare Part D claims in 2023 as a Rheumatology Physician in GREEN BAY, Wisconsin, prescribing 78% generic.

474
Part D claims, 2023
78%
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.

ARDY FENANDO, MD's Medicare Part D volume vs every U.S. prescriber

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

474 Top 38% higher than 62% 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%). This entry sits in this band. 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)

ARDY FENANDO, MD 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).

What does the federal data show about ARDY FENANDO, MD?

Quality data not reported

NPI registry status

Active

Issued 07/03/2018

NPI 1609362508

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

474 77% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Wisconsin

How Rheumatology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Rheumatology Physician share within Wisconsin

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

Specialty board-certification context

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

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

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

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

ARDY FENANDO, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 3263 EATON RD, GREEN BAY, WI, 54311, with a listed phone of (920) 433-6700. NPI 1609362508 was issued on 07/03/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FENANDO 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 474 prescription claims written by this provider, covering 139 Medicare beneficiaries and totaling roughly $663K in drug spend, split 22% brand-name and 78% 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.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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

3263 EATON RD
GREEN BAY, WI 54311

Provider Details

NPI 1609362508
Specialty Rheumatology Physician
Credentials MD
Gender Male
NPI Issued 07/03/2018

Hospital and facility affiliations

Facilities where ARDY FENANDO, 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.

BELLIN MEMORIAL HOSPITAL INC
GREEN BAY, WI
OCONTO HOSPITAL AND MEDICAL CENTER INC
MARINETTE, WI

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 ARDY FENANDO, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

ABBVIE 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.

Brand vs generic prescribing mix · Typical

ARDY FENANDO, MD — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 474 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.

474
Total Claims
$663K
Total Drug Cost
139
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
893
Total Day Supply
26,168
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$646K
Generic Drug Cost
$16K

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
1.66
Gender Split
70% female / 30% male

Top Prescribed Drugs (Medicare Part D)

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

What ARDY FENANDO, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
100
Hydroxychloroquine Sulfate
85
Methotrexate
Methotrexate Sodium
46
Allopurinol
22
Humira(Cf) Pen
Adalimumab
20
Actemra Actpen
Tocilizumab
16
Alendronate Sodium
13
Leflunomide
13
Humira(Cf)
Adalimumab
11
Xeljanz Xr
Tofacitinib Citrate
11

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

Rheumatology Physician Overview

How ARDY FENANDO, MD fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

ARDY FENANDO, MD's 474 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Wisconsin

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

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

Frequently Asked Questions

What is ARDY FENANDO, MD's specialty?
ARDY FENANDO, MD specializes in Rheumatology Physician and practices in GREEN BAY, Wisconsin. Credentials: MD.
How much does ARDY FENANDO, MD prescribe under Medicare Part D?
In 2023, ARDY FENANDO, MD wrote 474 Medicare Part D claims totaling $663K in drug costs for 139 beneficiaries.
Where is ARDY FENANDO, MD located?
ARDY FENANDO, MD is located at 3263 EATON RD, GREEN BAY, WI, 54311. Phone: (920) 433-6700.
What is ARDY FENANDO, MD's NPI number?
ARDY FENANDO, MD's National Provider Identifier (NPI) is 1609362508, issued on 07/03/2018.
Does ARDY FENANDO, MD prescribe more brand-name or generic drugs?
ARDY FENANDO, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $646K in brand drug costs.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does ARDY FENANDO, MD prescribe most often?
Based on 2023 Medicare Part D data, ARDY FENANDO, MD's most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARDY FENANDO, MD accept Medicare?
ARDY FENANDO, MD appears in CMS Medicare data with 474 Part D claims and 139 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARDY FENANDO, MD's credentials?
ARDY FENANDO, MD's NPI is 1609362508 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