NPI registry status
Active
2026 NPPES data Endodontics NPI 1245397975 DDS
Verify on CMS → Afshin Mazdeyasnan, DDS
Endodontics in Northridge, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,873 in Endodontics, 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
147
Medicare Part D claims · 89 beneficiaries · Endodontics avg: 116
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Afshin Mazdeyasnan, DDS filed 147 Medicare Part D claims in 2023 as a Endodontics in Northridge, California.
- 147
- Part D claims, 2023
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.
Afshin Mazdeyasnan, DDS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
147 35th percentile higher than 35% of 1,370,886 prescribers
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
What does the federal data show about Afshin Mazdeyasnan, DDS?
Quality data not reportedPrimary specialty
Endodontics
Medicare Part D claims
147 27% vs specialty avg
Specialty distribution in California
How Endodontics compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Endodontics. Verify directly:
How MIPS and board certification work
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).
Afshin Mazdeyasnan, DDS appears in the CMS NPPES registry as an Endodontics provider holding DDS credentials at 18250 ROSCOE BLVD STE 345, Northridge, CA, 91325, with a listed phone of (818) 885-3636. NPI 1245397975 was issued on 01/02/2007.
Medicare Part D records for calendar year 2023 show 147 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $748 in drug spend, with an opioid prescribing rate of 23.8%.
Endodontics is a mid-sized specialty nationwide, with 5,873 enrolled providers across 53 states and an average of 116 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
Provider Details
| NPI | 1245397975 |
|---|---|
| Specialty | Endodontics |
| Credentials | DDS |
| Gender | Male |
| NPI Issued | 01/02/2007 |
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 Afshin Mazdeyasnan, DDS. To verify Afshin Mazdeyasnan, DDS'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
147
Total Claims
$748
Total Drug Cost
89
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 147
- Total Day Supply
- 1,051
- Brand Drug Cost
- $0
- Generic Drug Cost
- $748
- Opioid Claims
- 35 (23.8% rate)
- Antibiotic Claims
- 74
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.18
- 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 Afshin Mazdeyasnan, DDS prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amoxicillin
Amoxicillin
53 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
34 claims
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
23 claims
- Azithromycin 12
Azithromycin
12 claims
| Drug | Claims |
|---|---|
| Amoxicillin | 53 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 34 |
| Chlorhexidine Gluconate | 23 |
| Azithromycin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Endodontics Overview
How Afshin Mazdeyasnan, DDS fits within the Endodontics landscape nationally.
5,873
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider
Afshin Mazdeyasnan, DDS's 147 claims are above the specialty average of 116.
Nearby Endodontics Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Mazdeyasnan.
Dr. Farah Abbassi
DMD, MSD
Santa Ana, CA
Dr. James Abbott
D.D.S., M.S.
Santa Rosa, CA
Dr. Adham Abdel Azim
BDS, DDS
San Francisco, CA
Dr. Thomas Acierno
D.D.S.
San Diego, CA
Dr. Dina Adami
DDS
Santa Monica, CA
Compare Endodontics 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Endodontics 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.
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Medical Specialties Explained
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Frequently Asked Questions
What is Afshin Mazdeyasnan, DDS's specialty? ▼
Afshin Mazdeyasnan, DDS specializes in Endodontics and practices in Northridge, California. Credentials: DDS.
How much does Afshin Mazdeyasnan, DDS prescribe under Medicare Part D? ▼
In 2023, Afshin Mazdeyasnan, DDS wrote 147 Medicare Part D claims totaling $748 in drug costs for 89 beneficiaries.
Where is Afshin Mazdeyasnan, DDS located? ▼
Afshin Mazdeyasnan, DDS is located at 18250 ROSCOE BLVD STE 345, Northridge, CA, 91325. Phone: (818) 885-3636.
What is Afshin Mazdeyasnan, DDS's NPI number? ▼
Afshin Mazdeyasnan, DDS's National Provider Identifier (NPI) is 1245397975, issued on 01/02/2007.
Does Afshin Mazdeyasnan, DDS prescribe opioids? ▼
Yes, Afshin Mazdeyasnan, DDS had 35 opioid claims in 2023 with an opioid prescribing rate of 23.8%.
How many Endodontics providers are there in the US? ▼
There are 5,873 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does Afshin Mazdeyasnan, DDS prescribe most often? ▼
Based on 2023 Medicare Part D data, Afshin Mazdeyasnan, DDS's most frequently prescribed drugs include Amoxicillin, Hydrocodone-Acetaminophen, Chlorhexidine Gluconate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Afshin Mazdeyasnan, DDS accept Medicare? ▼
Afshin Mazdeyasnan, DDS appears in CMS Medicare data with 147 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Afshin Mazdeyasnan, DDS's credentials? ▼
Afshin Mazdeyasnan, DDS's NPI is 1245397975 with credentials DDS. 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
View source datasets and methodology notes
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.