2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1609202308 DO
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NADINE ALDAHHAN, DO

Emergency Medical Services (Emergency Medicine) Physician in SAUSALITO, 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
5K
Medicare Part D claims · 724 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

NADINE ALDAHHAN, DO filed 4,976 Medicare Part D claims in 2023 as a Emergency Medical Services (Emergency Medicine) Physician in SAUSALITO, California, prescribing 93% generic.

5K
Part D claims, 2023
93%
generic prescribing
Likely
board-certified (heuristic)

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.

NADINE ALDAHHAN, DO's Medicare Part D volume vs every U.S. prescriber

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

4,976 Top 6% higher than 94% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

NADINE ALDAHHAN, DO 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).

What does the federal data show about NADINE ALDAHHAN, DO?

Quality data not reported

NPI registry status

Active

Issued 09/25/2013

NPI 1609202308

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

4,976 1163% vs specialty avg

2023 prescription claims

Specialty avg: 394

Specialty distribution in California

How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among California providers

California providers

Emergency Medical Services (Emergency Medicine) Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medical Services (Emergency Medicine) Physician (ABMS / AOA reference)

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

Est. board-certified rate (Emergency Medical Services (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medical Services (Emergency 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).

NADINE ALDAHHAN, DO is a Emergency Medical Services (Emergency Medicine) Physician provider practicing in SAUSALITO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1609202308. 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.

NADINE ALDAHHAN, DO appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding DO credentials at 3 HARBOR DR STE 111, SAUSALITO, CA, 94965, with a listed phone of (415) 683-2988. NPI 1609202308 was issued on 09/25/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALDAHHAN 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 4,976 prescription claims written by this provider, covering 724 Medicare beneficiaries and totaling roughly $341K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 2.0%. 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.

Emergency Medical Services (Emergency Medicine) Physician is a narrow specialty nationwide, with 3,616 enrolled providers across 55 states and an average of 394 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

3 HARBOR DR STE 111
SAUSALITO, CA 94965

Provider Details

NPI 1609202308
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials DO
Gender Female
NPI Issued 09/25/2013

Hospital and facility affiliations

Facilities where NADINE ALDAHHAN, DO 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.

SUTTER BAY MEDICAL FOUNDATION
SANTA ROSA, 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).

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 NADINE ALDAHHAN, DO. To verify NADINE ALDAHHAN, DO'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 · Generic-heavy

NADINE ALDAHHAN, DO — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 4,976 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.

4,976
Total Claims
$341K
Total Drug Cost
724
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,433
Total Day Supply
331,132
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$212K
Generic Drug Cost
$128K
Opioid Claims
98 (2.0% rate)
Antibiotic Claims
193

Patient Demographics

Average Patient Age
76.2 years
Avg HCC Risk Score
0.98
Gender Split
60% female / 40% male
Age Distribution
<65: 18, 65-74: 292, 75-84: 306, 85+: 108

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
405
Levothyroxine Sodium
323
Lisinopril
307
Amlodipine Besylate
200
Rosuvastatin Calcium
170
Gabapentin
154
Omeprazole
134
Escitalopram Oxalate
115
Losartan Potassium
110
Hydrochlorothiazide
100

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

Emergency Medical Services (Emergency Medicine) Physician Overview

How NADINE ALDAHHAN, DO fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.

3,616
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider

NADINE ALDAHHAN, DO's 4,976 claims are above the specialty average of 394.

Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in California

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

Compare Emergency Medical Services (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NADINE ALDAHHAN, DO's specialty?
NADINE ALDAHHAN, DO specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in SAUSALITO, California. Credentials: DO.
How much does NADINE ALDAHHAN, DO prescribe under Medicare Part D?
In 2023, NADINE ALDAHHAN, DO wrote 4,976 Medicare Part D claims totaling $341K in drug costs for 724 beneficiaries.
Where is NADINE ALDAHHAN, DO located?
NADINE ALDAHHAN, DO is located at 3 HARBOR DR STE 111, SAUSALITO, CA, 94965. Phone: (415) 683-2988.
What is NADINE ALDAHHAN, DO's NPI number?
NADINE ALDAHHAN, DO's National Provider Identifier (NPI) is 1609202308, issued on 09/25/2013.
Does NADINE ALDAHHAN, DO prescribe more brand-name or generic drugs?
NADINE ALDAHHAN, DO's prescribing is 7% brand-name and 93% generic drugs by claim count, with $212K in brand drug costs.
Does NADINE ALDAHHAN, DO prescribe opioids?
Yes, NADINE ALDAHHAN, DO had 98 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US?
There are 3,616 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
What drugs does NADINE ALDAHHAN, DO prescribe most often?
Based on 2023 Medicare Part D data, NADINE ALDAHHAN, DO's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NADINE ALDAHHAN, DO accept Medicare?
NADINE ALDAHHAN, DO appears in CMS Medicare data with 4,976 Part D claims and 724 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NADINE ALDAHHAN, DO's credentials?
NADINE ALDAHHAN, DO's NPI is 1609202308 with credentials DO. 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