2026 NPPES data Obstetrics & Gynecology Physician NPI 1396739488 DO
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JAY GONZALEZ, DO

Obstetrics & Gynecology Physician in OSHKOSH, 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
180
Medicare Part D claims · 79 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JAY GONZALEZ, DO filed 180 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in OSHKOSH, Wisconsin, prescribing 88% generic.

180
Part D claims, 2023
88%
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.

JAY GONZALEZ, DO's Medicare Part D volume vs every U.S. prescriber

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

180 35th percentile higher than 35% 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)

JAY GONZALEZ, DO 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 JAY GONZALEZ, DO?

Quality data not reported

NPI registry status

Active

Issued 09/06/2005

NPI 1396739488

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

180 1% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Wisconsin

How Obstetrics & Gynecology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Obstetrics & Gynecology Physician share within Wisconsin

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

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

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

JAY GONZALEZ, DO appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding DO credentials at 2700 W 9TH AVE, OSHKOSH, WI, 54904, with a listed phone of (920) 223-0220. NPI 1396739488 was issued on 09/06/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GONZALEZ 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 180 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $21K in drug spend, split 12% brand-name and 88% 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

2700 W 9TH AVE
OSHKOSH, WI 54904

Provider Details

NPI 1396739488
Specialty Obstetrics & Gynecology Physician
Credentials DO
Gender Male
NPI Issued 09/06/2005

Hospital and facility affiliations

Facilities where JAY GONZALEZ, DO 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.

AGNESIAN HEALTHCARE INC
FOND DU LAC, 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).

Brand vs generic prescribing mix · Typical

JAY GONZALEZ, DO — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 180 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.

180
Total Claims
$21K
Total Drug Cost
79
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
368
Total Day Supply
9,451
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$12K
Generic Drug Cost
$9K
Antibiotic Claims
32

Patient Demographics

Average Patient Age
66.7 years
Avg HCC Risk Score
1.01
Gender Split
100% female / 0% male
Age Distribution
<65: 20, 65-74: 38, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What JAY GONZALEZ, DO 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
Estradiol
45
Fluconazole
13
Metronidazole
13
Oxybutynin Chloride Er
Oxybutynin Chloride
12

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

Obstetrics & Gynecology Physician Overview

How JAY GONZALEZ, DO fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

JAY GONZALEZ, DO's 180 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Wisconsin

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

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAY GONZALEZ, DO's specialty?
JAY GONZALEZ, DO specializes in Obstetrics & Gynecology Physician and practices in OSHKOSH, Wisconsin. Credentials: DO.
How much does JAY GONZALEZ, DO prescribe under Medicare Part D?
In 2023, JAY GONZALEZ, DO wrote 180 Medicare Part D claims totaling $21K in drug costs for 79 beneficiaries.
Where is JAY GONZALEZ, DO located?
JAY GONZALEZ, DO is located at 2700 W 9TH AVE, OSHKOSH, WI, 54904. Phone: (920) 223-0220.
What is JAY GONZALEZ, DO's NPI number?
JAY GONZALEZ, DO's National Provider Identifier (NPI) is 1396739488, issued on 09/06/2005.
Does JAY GONZALEZ, DO prescribe more brand-name or generic drugs?
JAY GONZALEZ, DO's prescribing is 12% brand-name and 88% generic drugs by claim count, with $12K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does JAY GONZALEZ, DO prescribe most often?
Based on 2023 Medicare Part D data, JAY GONZALEZ, DO's most frequently prescribed drugs include Estradiol, Fluconazole, Metronidazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAY GONZALEZ, DO accept Medicare?
JAY GONZALEZ, DO appears in CMS Medicare data with 180 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAY GONZALEZ, DO's credentials?
JAY GONZALEZ, DO's NPI is 1396739488 with credentials DO. 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