2026 NPPES data General Practice Physician NPI 1013970060 MD
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Aviva Zigman, MD

General Practice Physician in Milwaukie, Oregon. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 16,677 in General Practice Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
105
Medicare Part D claims · 15 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
69%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Aviva Zigman, MD filed 105 Medicare Part D claims in 2023 as a General Practice Physician in Milwaukie, Oregon, prescribing 69% generic.

105
Part D claims, 2023
69%
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.

Aviva Zigman, MD's Medicare Part D volume vs every U.S. prescriber

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

105 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-eligible specialty (heuristic — not verified)

Aviva Zigman, MD 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 Aviva Zigman, MD?

Quality data not reported

NPI registry status

Active

Issued 04/10/2006

NPI 1013970060

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

105 96% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Oregon

How General Practice Physician compares to other specialties among Oregon providers

Oregon providers

Largest specialties in Oregon (% of in-state providers)

Mental Health Counselor — 12.1%Mental Health Counselor12.1%Massage Therapist — 4.8%Massage Therapist4.8%Counselor — 3.9%Counselor3.9%Addiction (Substance Use Disorder) Counselor — 3.5%Addiction (Substance Use Disorder) Counselor3.5%Case Manager/Care Coordinator — 3.4%Case Manager/Care Coordinator3.4%Clinical Social Worker — 3.3%Clinical Social Worker3.3%General Practice Physician — 0.1%General Practice Physician0.1%
Largest specialties in Oregon (% of in-state providers)

Specialty board-certification context

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

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

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

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

Aviva Zigman, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 4560 SE INTERNATIONAL WAY STE 100, Milwaukie, OR, 97222, with a listed phone of (971) 206-5164. NPI 1013970060 was issued on 04/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Zigman 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 105 prescription claims written by this provider, covering 15 Medicare beneficiaries and totaling roughly $8K in drug spend, split 21% brand-name and 69% 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

4560 SE INTERNATIONAL WAY STE 100
Milwaukie, OR 97222

Provider Details

NPI 1013970060
Specialty General Practice Physician
Credentials MD
Gender Female
NPI Issued 04/10/2006

Brand vs generic prescribing mix · Typical

Aviva Zigman, MD — brand share 21.0%
General Practice Physician average

21% brand-name claims vs 69% generic, on 105 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.

105
Total Claims
$8K
Total Drug Cost
15
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
105
Total Day Supply
2,245
Brand vs Generic
21% brand / 69% generic
Brand Drug Cost
$7K
Generic Drug Cost
$714

Patient Demographics

Average Patient Age
76.4 years
Avg HCC Risk Score
1.91

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ramipril
19

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

General Practice Physician Overview

How Aviva Zigman, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

Aviva Zigman, MD's 105 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Oregon

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

Compare General Practice Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Oregon medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby General Practice Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Aviva Zigman, MD's specialty?
Aviva Zigman, MD specializes in General Practice Physician and practices in Milwaukie, Oregon. Credentials: MD.
How much does Aviva Zigman, MD prescribe under Medicare Part D?
In 2023, Aviva Zigman, MD wrote 105 Medicare Part D claims totaling $8K in drug costs for 15 beneficiaries.
Where is Aviva Zigman, MD located?
Aviva Zigman, MD is located at 4560 SE INTERNATIONAL WAY STE 100, Milwaukie, OR, 97222. Phone: (971) 206-5164.
What is Aviva Zigman, MD's NPI number?
Aviva Zigman, MD's National Provider Identifier (NPI) is 1013970060, issued on 04/10/2006.
Does Aviva Zigman, MD prescribe more brand-name or generic drugs?
Aviva Zigman, MD's prescribing is 21% brand-name and 69% generic drugs by claim count, with $7K in brand drug costs.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does Aviva Zigman, MD prescribe most often?
Based on 2023 Medicare Part D data, Aviva Zigman, MD's most frequently prescribed drugs include Ramipril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aviva Zigman, MD accept Medicare?
Aviva Zigman, MD appears in CMS Medicare data with 105 Part D claims and 15 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aviva Zigman, MD's credentials?
Aviva Zigman, MD's NPI is 1013970060 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

Compiled from official public sources by the PlainDoctor editorial team.