2026 NPPES data Allergy & Immunology Physician NPI 1194914226 D.O.
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SAHAR FAGHIH, D.O.

Allergy & Immunology Physician in FULLERTON, 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
332
Medicare Part D claims · 81 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
42%
generic claims · 58% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$43.4K
103 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SAHAR FAGHIH, D.O. filed 332 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in FULLERTON, California, prescribing 42% generic.

332
Part D claims, 2023
42%
generic prescribing
$43.4K
industry payments (Sunshine Act)

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.

SAHAR FAGHIH, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

332 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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)

SAHAR FAGHIH, D.O. 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 SAHAR FAGHIH, D.O.?

Quality data not reported

NPI registry status

Active

Issued 10/15/2007

NPI 1194914226

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

332 57% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in California

How Allergy & Immunology Physician compares to other specialties among California providers

California providers

Allergy & Immunology Physician share within California

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Allergy & Immunology Physician ABMS/AOA estimate

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology 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).

SAHAR FAGHIH, D.O. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding D.O. credentials at 1401 S BROOKHURST RD STE 106, FULLERTON, CA, 92833, with a listed phone of (714) 773-1001. NPI 1194914226 was issued on 10/15/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FAGHIH 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 332 prescription claims written by this provider, covering 81 Medicare beneficiaries and totaling roughly $399K in drug spend, split 58% brand-name and 42% 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.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

1401 S BROOKHURST RD STE 106
FULLERTON, CA 92833

Provider Details

NPI 1194914226
Specialty Allergy & Immunology Physician
Credentials D.O.
Gender Female
NPI Issued 10/15/2007

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 SAHAR FAGHIH, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$43.4K

Largest payer

AstraZeneca Pharmaceuticals LP

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 SAHAR FAGHIH, D.O.. To verify SAHAR FAGHIH, D.O.'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 · Brand-heavy

SAHAR FAGHIH, D.O. — brand share 58.0%
Specialty average (est.)

58% brand-name claims vs 42% generic, on 332 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.

332
Total Claims
$399K
Total Drug Cost
81
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
397
Total Day Supply
10,798
Brand vs Generic
58% brand / 42% generic
Brand Drug Cost
$394K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.24
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

What SAHAR FAGHIH, D.O. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Dupixent Pen
Dupilumab
36
Azelastine Hcl
35
Xolair
Omalizumab
35
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
29
Fluticasone Propionate
28
Ipratropium Bromide
22
Tezspire
Tezepelumab-Ekko
18
Albuterol Sulfate Hfa
Albuterol Sulfate
17
Xhance
Fluticasone Propionate
14
Tacrolimus
13

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

Allergy & Immunology Physician Overview

How SAHAR FAGHIH, D.O. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

SAHAR FAGHIH, D.O.'s 332 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in California

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SAHAR FAGHIH, D.O.'s specialty?
SAHAR FAGHIH, D.O. specializes in Allergy & Immunology Physician and practices in FULLERTON, California. Credentials: D.O..
How much does SAHAR FAGHIH, D.O. prescribe under Medicare Part D?
In 2023, SAHAR FAGHIH, D.O. wrote 332 Medicare Part D claims totaling $399K in drug costs for 81 beneficiaries.
Where is SAHAR FAGHIH, D.O. located?
SAHAR FAGHIH, D.O. is located at 1401 S BROOKHURST RD STE 106, FULLERTON, CA, 92833. Phone: (714) 773-1001.
What is SAHAR FAGHIH, D.O.'s NPI number?
SAHAR FAGHIH, D.O.'s National Provider Identifier (NPI) is 1194914226, issued on 10/15/2007.
Does SAHAR FAGHIH, D.O. prescribe more brand-name or generic drugs?
SAHAR FAGHIH, D.O.'s prescribing is 58% brand-name and 42% generic drugs by claim count, with $394K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does SAHAR FAGHIH, D.O. prescribe most often?
Based on 2023 Medicare Part D data, SAHAR FAGHIH, D.O.'s most frequently prescribed drugs include Dupixent Pen, Azelastine Hcl, Xolair. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAHAR FAGHIH, D.O. accept Medicare?
SAHAR FAGHIH, D.O. appears in CMS Medicare data with 332 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAHAR FAGHIH, D.O.'s credentials?
SAHAR FAGHIH, D.O.'s NPI is 1194914226 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