2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1295994275 MD, MPH, FASAM
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BELIS ALADAG, MD, MPH, FASAM

Addiction Medicine (Family Medicine) Physician in WALNUT CREEK, California. 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
190
Medicare Part D claims · 39 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$110.52
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: BELIS ALADAG, MD, MPH, FASAM is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in WALNUT CREEK, California with a Medicare Part D prescribing footprint of 190 claims across 39 beneficiaries — 22% brand-name prescribing . Industry payments of $110.52 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: BELIS ALADAG, MD, MPH, FASAM filed 190 Medicare Part D claims in 2023 across WALNUT CREEK, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BELIS ALADAG, MD, MPH, FASAM 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).

BELIS ALADAG, MD, MPH, FASAM at a glance

Quality data not reported

NPI registry status

Active

Issued 06/05/2008

NPI 1295994275

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

190 83% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in California

How Addiction Medicine (Family Medicine) Physician compares to other specialties among California providers

California providers

Addiction Medicine (Family Medicine) Physician share within California

1. Addiction Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Family Medicine) Physician share within California

Specialty board-certification context

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

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

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

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

BELIS ALADAG, MD, MPH, FASAM is a Addiction Medicine (Family Medicine) Physician provider practicing in WALNUT CREEK, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD, MPH, FASAM. NPI: 1295994275. 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.

BELIS ALADAG, MD, MPH, FASAM appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding MD, MPH, FASAM credentials at 2960 CAMINO DIABLO STE 105, WALNUT CREEK, CA, 94597, with a listed phone of (800) 892-2695. NPI 1295994275 was issued on 06/05/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALADAG 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 190 prescription claims written by this provider, covering 39 Medicare beneficiaries and totaling roughly $29K 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.

Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 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

2960 CAMINO DIABLO STE 105
WALNUT CREEK, CA 94597

Provider Details

NPI 1295994275
Specialty Addiction Medicine (Family Medicine) Physician
Credentials MD, MPH, FASAM
Gender Female
NPI Issued 06/05/2008

Hospital and facility affiliations

Facilities where BELIS ALADAG, MD, MPH, FASAM 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.

BRIGHT HEART HEALTH MEDICAL GROUP A MEDICAL CORPORATION
WALNUT CREEK, CA

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 BELIS ALADAG, MD, MPH, FASAM. Source: openpaymentsdata.cms.gov.

Total received

$111

Largest payer

Braeburn 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.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to BELIS ALADAG, MD, MPH, FASAM. To verify BELIS ALADAG, MD, MPH, FASAM's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

BELIS ALADAG, MD, MPH, FASAM — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 190 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.

190
Total Claims
$29K
Total Drug Cost
39
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
191
Total Day Supply
3,909
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$12K
Generic Drug Cost
$17K

Patient Demographics

Average Patient Age
63.1 years
Avg HCC Risk Score
1.21
Gender Split
41% female / 59% male
Age Distribution
<65: 14, 65-74: 22, 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.

Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
85
Suboxone
Buprenorphine Hcl/Naloxone Hcl
38
Buprenorphine Hcl
16
Gabapentin
13

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

Addiction Medicine (Family Medicine) Physician Overview

How BELIS ALADAG, MD, MPH, FASAM fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.

763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider

BELIS ALADAG, MD, MPH, FASAM's 190 claims are below the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in California

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

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

Frequently Asked Questions

What is BELIS ALADAG, MD, MPH, FASAM's specialty?
BELIS ALADAG, MD, MPH, FASAM specializes in Addiction Medicine (Family Medicine) Physician and practices in WALNUT CREEK, California. Credentials: MD, MPH, FASAM.
How much does BELIS ALADAG, MD, MPH, FASAM prescribe under Medicare Part D?
In 2023, BELIS ALADAG, MD, MPH, FASAM wrote 190 Medicare Part D claims totaling $29K in drug costs for 39 beneficiaries.
Where is BELIS ALADAG, MD, MPH, FASAM located?
BELIS ALADAG, MD, MPH, FASAM is located at 2960 CAMINO DIABLO STE 105, WALNUT CREEK, CA, 94597. Phone: (800) 892-2695.
What is BELIS ALADAG, MD, MPH, FASAM's NPI number?
BELIS ALADAG, MD, MPH, FASAM's National Provider Identifier (NPI) is 1295994275, issued on 06/05/2008.
Does BELIS ALADAG, MD, MPH, FASAM prescribe more brand-name or generic drugs?
BELIS ALADAG, MD, MPH, FASAM's prescribing is 22% brand-name and 78% generic drugs by claim count, with $12K in brand drug costs.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US?
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does BELIS ALADAG, MD, MPH, FASAM prescribe most often?
Based on 2023 Medicare Part D data, BELIS ALADAG, MD, MPH, FASAM's most frequently prescribed drugs include Buprenorphine-Naloxone, Suboxone, Buprenorphine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BELIS ALADAG, MD, MPH, FASAM accept Medicare?
BELIS ALADAG, MD, MPH, FASAM appears in CMS Medicare data with 190 Part D claims and 39 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BELIS ALADAG, MD, MPH, FASAM's credentials?
BELIS ALADAG, MD, MPH, FASAM's NPI is 1295994275 with credentials MD, MPH, FASAM. 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