2026 NPPES data Family Medicine Physician NPI 1255678439 D.O.
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DANIEL ANANYEV, D.O.

Family Medicine Physician in LAKE OSWEGO, Oregon. 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 · 252 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$194.52
6 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DANIEL ANANYEV, D.O. is a Family Medicine Physician ([object Object]) practicing in LAKE OSWEGO, Oregon with a Medicare Part D prescribing footprint of 2K claims across 252 beneficiaries — 13% brand-name prescribing . Industry payments of $194.52 across 6 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DANIEL ANANYEV, D.O. filed 2,394 Medicare Part D claims in 2023 across LAKE OSWEGO, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DANIEL ANANYEV, D.O. 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).

DANIEL ANANYEV, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 01/09/2013

NPI 1255678439

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

2,394 30% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Oregon

How Family Medicine Physician compares to other specialties among Oregon providers

Oregon providers

Family Medicine Physician share within Oregon

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

Specialty board-certification context

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

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

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

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

DANIEL ANANYEV, D.O. is a Family Medicine Physician provider practicing in LAKE OSWEGO, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1255678439. 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.

DANIEL ANANYEV, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 16463 BOONES FERRY RD STE 300, LAKE OSWEGO, OR, 97035, with a listed phone of (503) 658-9351. NPI 1255678439 was issued on 01/09/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANANYEV 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 2,394 prescription claims written by this provider, covering 252 Medicare beneficiaries and totaling roughly $326K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.4%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

16463 BOONES FERRY RD STE 300
LAKE OSWEGO, OR 97035

Provider Details

NPI 1255678439
Specialty Family Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 01/09/2013

Hospital and facility affiliations

Facilities where DANIEL ANANYEV, D.O. 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.

LEGACY MOUNT HOOD MEDICAL CENTER
★★★☆☆ 3/5
GRESHAM, OR
Acute Care Hospitals
CMS CCN: 380025

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 DANIEL ANANYEV, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$195

Largest payer

Novo Nordisk 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

DANIEL ANANYEV, D.O. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 2,394 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.

2,394
Total Claims
$326K
Total Drug Cost
252
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,855
Total Day Supply
139,407
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$267K
Generic Drug Cost
$59K
Opioid Claims
58 (2.4% rate)
Antibiotic Claims
33

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.09
Gender Split
48% female / 52% male
Age Distribution
<65: 24, 65-74: 143, 75-84: 61, 85+: 24

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
161
Lisinopril
98
Amlodipine Besylate
87
Gabapentin
82
Losartan Potassium
81
Levothyroxine Sodium
62
Rosuvastatin Calcium
62
Tamsulosin Hcl
53
Duloxetine Hcl
51
Metoprolol Succinate
40

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

Family Medicine Physician Overview

How DANIEL ANANYEV, D.O. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

DANIEL ANANYEV, D.O.'s 2,394 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Oregon

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DANIEL ANANYEV, D.O.'s specialty?
DANIEL ANANYEV, D.O. specializes in Family Medicine Physician and practices in LAKE OSWEGO, Oregon. Credentials: D.O..
How much does DANIEL ANANYEV, D.O. prescribe under Medicare Part D?
In 2023, DANIEL ANANYEV, D.O. wrote 2,394 Medicare Part D claims totaling $326K in drug costs for 252 beneficiaries.
Where is DANIEL ANANYEV, D.O. located?
DANIEL ANANYEV, D.O. is located at 16463 BOONES FERRY RD STE 300, LAKE OSWEGO, OR, 97035. Phone: (503) 658-9351.
What is DANIEL ANANYEV, D.O.'s NPI number?
DANIEL ANANYEV, D.O.'s National Provider Identifier (NPI) is 1255678439, issued on 01/09/2013.
Does DANIEL ANANYEV, D.O. prescribe more brand-name or generic drugs?
DANIEL ANANYEV, D.O.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $267K in brand drug costs.
Does DANIEL ANANYEV, D.O. prescribe opioids?
Yes, DANIEL ANANYEV, D.O. had 58 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does DANIEL ANANYEV, D.O. prescribe most often?
Based on 2023 Medicare Part D data, DANIEL ANANYEV, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIEL ANANYEV, D.O. accept Medicare?
DANIEL ANANYEV, D.O. appears in CMS Medicare data with 2,394 Part D claims and 252 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIEL ANANYEV, D.O.'s credentials?
DANIEL ANANYEV, D.O.'s NPI is 1255678439 with credentials D.O.. 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