HAMID HASSANZADEH, D.C., PA-C
Chiropractor in RED BLUFF, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
HAMID HASSANZADEH, D.C., PA-C reported a CMS MIPS final score of 78.2877/100 — below the 83.1 national average — and filed 3,622 Medicare Part D claims in 2023.
- 78.2877/100
- MIPS score · -5 vs avg
- 4K
- Part D claims, 2023
- 88%
- 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.
HAMID HASSANZADEH, D.C., PA-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
78 27th percentile higher than 27% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
HAMID HASSANZADEH, D.C., PA-C at a glance
Near national averagePrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in California
How Chiropractor compares to other specialties among California providers
Chiropractor share within California
Chiropractor is one of the more visible NUCC categories in California
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
HAMID HASSANZADEH, D.C., PA-C's 2023 MIPS final score plotted against the Chiropractor national average
- MIPS Final Score
- 78.2877/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Chiropractor) — 78.2877/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Cost dim CMS Cost category
- Specialty volume Chiropractor US NPIs
78.2877/100 MIPS final score — 4.8 pts below the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Chiropractor. Quality dim: 71.3135. Cost dim: 45.479.
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).
HAMID HASSANZADEH, D.C., PA-C is a Chiropractor provider practicing in RED BLUFF, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.C., PA-C. NPI: 1326127820. 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.
HAMID HASSANZADEH, D.C., PA-C appears in the CMS NPPES registry as a Chiropractor provider holding D.C., PA-C credentials at 2450 SISTER MARY COLUMBA DR, RED BLUFF, CA, 96080, with a listed phone of (530) 527-0414. NPI 1326127820 was issued on 11/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HASSANZADEH 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 3,622 prescription claims written by this provider, covering 514 Medicare beneficiaries and totaling roughly $271K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.2877/100 for the 2023 performance year (Quality 71.3135, Cost 45.479), compared with the national average of 83.1.
Chiropractor is a high-volume specialty nationwide, with 95,153 enrolled providers across 56 states and an average of 824 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 | 1326127820 |
|---|---|
| Specialty | Chiropractor |
| Credentials | D.C., PA-C |
| Gender | Male |
| NPI Issued | 11/03/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm HAMID HASSANZADEH, D.C., PA-C's current license status, disciplinary history, and board certifications with the Medical Board of California in California before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Group practice
Hospital and facility affiliations
Facilities where HAMID HASSANZADEH, D.C., PA-C 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.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 HAMID HASSANZADEH, D.C., PA-C. To verify HAMID HASSANZADEH, D.C., PA-C's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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
12% brand-name claims vs 88% generic, on 3,622 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.
Prescribing Breakdown
- 30-Day Fills
- 4,657
- Total Day Supply
- 132,744
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $214K
- Generic Drug Cost
- $56K
- Antibiotic Claims
- 92
Patient Demographics
- Average Patient Age
- 69.0 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 119, 65-74: 248, 75-84: 104, 85+: 43
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 | 223 |
| Lisinopril | 204 |
| Levothyroxine Sodium | 192 |
| Amlodipine Besylate | 185 |
| Losartan Potassium | 126 |
| Metformin Hcl | 102 |
| Omeprazole | 102 |
| Gabapentin | 92 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 91 |
| Trazodone Hcl | 73 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Chiropractor Overview
How HAMID HASSANZADEH, D.C., PA-C fits within the Chiropractor landscape nationally.
HAMID HASSANZADEH, D.C., PA-C's 3,622 claims are above the specialty average of 824.
Nearby Chiropractor Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as HASSANZADEH.
Compare Chiropractor nationally: see state-by-state distribution →
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Frequently Asked Questions
What is HAMID HASSANZADEH, D.C., PA-C's specialty? ▼
How much does HAMID HASSANZADEH, D.C., PA-C prescribe under Medicare Part D? ▼
What is HAMID HASSANZADEH, D.C., PA-C's Medicare quality score? ▼
Where is HAMID HASSANZADEH, D.C., PA-C located? ▼
What is HAMID HASSANZADEH, D.C., PA-C's NPI number? ▼
Does HAMID HASSANZADEH, D.C., PA-C prescribe more brand-name or generic drugs? ▼
How many Chiropractor providers are there in the US? ▼
What drugs does HAMID HASSANZADEH, D.C., PA-C prescribe most often? ▼
Does HAMID HASSANZADEH, D.C., PA-C accept Medicare? ▼
How can I verify HAMID HASSANZADEH, D.C., PA-C's credentials? ▼
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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- 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