NPI registry status
Active
2026 NPPES data Specialist NPI 1386149706 MD, MPH
Verify on CMS → Ann Crawford-Day, MD, MPH
Specialist in San Ysidro, 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 69,608 in Specialist, 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
536
Medicare Part D claims · 75 beneficiaries · Specialist avg: 1K
What the federal data shows
Ann Crawford-Day, MD, MPH filed 536 Medicare Part D claims in 2023 as a Specialist in San Ysidro, California.
- 536
- 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.
Ann Crawford-Day, MD, MPH's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
536 Top 34% higher than 66% 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 Ann Crawford-Day, MD, MPH?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
536 64% vs specialty avg
Specialty distribution in California
How Specialist 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 Specialist. 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).
Ann Crawford-Day, MD, MPH appears in the CMS NPPES registry as a Specialist provider holding MD, MPH credentials at 4004 BEYER BLVD, San Ysidro, CA, 92173, with a listed phone of (619) 662-4100. NPI 1386149706 was issued on 03/27/2018.
Medicare Part D records for calendar year 2023 show 536 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $27K in drug spend.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1386149706 |
|---|---|
| Specialty | Specialist |
| Credentials | MD, MPH |
| Gender | Female |
| NPI Issued | 03/27/2018 |
Hospital and facility affiliations
Facilities where Ann Crawford-Day, MD, MPH 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.
Centro DE Salud DE LA Comunidad DE San Ysidro, Inc
San Ysidro, 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 Ann Crawford-Day, MD, MPH. To verify Ann Crawford-Day, MD, MPH'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.
536
Total Claims
$27K
Total Drug Cost
75
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 850
- Total Day Supply
- 25,210
- Generic Drug Cost
- $24K
Patient Demographics
- Average Patient Age
- 64.2 years
- Avg HCC Risk Score
- 1.37
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 25, 65-74: 36, 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.
What Ann Crawford-Day, MD, MPH prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trazodone Hcl
Trazodone Hcl
56 claims
- Mirtazapine
Mirtazapine
50 claims
- Duloxetine Hcl
Duloxetine Hcl
46 claims
- Aripiprazole
Aripiprazole
40 claims
- Sertraline Hcl
Sertraline Hcl
38 claims
- Bupropion Xl
Bupropion Xl
26 claims
- Gabapentin
Gabapentin
25 claims
- Quetiapine Fumarate
Quetiapine Fumarate
25 claims
| Drug | Claims |
|---|---|
| Trazodone Hcl | 56 |
| Mirtazapine | 50 |
| Duloxetine Hcl | 46 |
| Aripiprazole | 40 |
| Sertraline Hcl | 38 |
| Bupropion Xl Bupropion Hcl | 26 |
| Gabapentin | 25 |
| Quetiapine Fumarate | 25 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 24 |
| Escitalopram Oxalate | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Ann Crawford-Day, MD, MPH fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Ann Crawford-Day, MD, MPH's 536 claims are below the specialty average of 1,474.
Nearby Specialist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Crawford-Day.
Adrienne Abad Santos
San Francisco, CA
Dr. Brenda Abarca
MD
Torrance, CA
Dr. Fatemeh Abbasi
PT
Van Nuys, CA
Dr. Erlinda Abcede
M.D.
Cudahy, CA
Dr. Maher Abdallah
M.D.
Palm Springs, CA
Compare Specialist 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 Specialist 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Ann Crawford-Day, MD, MPH's specialty? ▼
Ann Crawford-Day, MD, MPH specializes in Specialist and practices in San Ysidro, California. Credentials: MD, MPH.
How much does Ann Crawford-Day, MD, MPH prescribe under Medicare Part D? ▼
In 2023, Ann Crawford-Day, MD, MPH wrote 536 Medicare Part D claims totaling $27K in drug costs for 75 beneficiaries.
Where is Ann Crawford-Day, MD, MPH located? ▼
Ann Crawford-Day, MD, MPH is located at 4004 BEYER BLVD, San Ysidro, CA, 92173. Phone: (619) 662-4100.
What is Ann Crawford-Day, MD, MPH's NPI number? ▼
Ann Crawford-Day, MD, MPH's National Provider Identifier (NPI) is 1386149706, issued on 03/27/2018.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Ann Crawford-Day, MD, MPH prescribe most often? ▼
Based on 2023 Medicare Part D data, Ann Crawford-Day, MD, MPH's most frequently prescribed drugs include Trazodone Hcl, Mirtazapine, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Crawford-Day, MD, MPH accept Medicare? ▼
Ann Crawford-Day, MD, MPH appears in CMS Medicare data with 536 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Crawford-Day, MD, MPH's credentials? ▼
Ann Crawford-Day, MD, MPH's NPI is 1386149706 with credentials MD, MPH. 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
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.