2026 NPPES data Advanced Practice Midwife NPI 1164570016 CNM
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ERIN DUNN, CNM

Advanced Practice Midwife in SAN DIEGO, 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
65
Medicare Part D claims · 28 beneficiaries · Advanced Practice Midwife avg: 99
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ERIN DUNN, CNM is a Advanced Practice Midwife ([object Object]) practicing in SAN DIEGO, California with a Medicare Part D prescribing footprint of 65 claims across 28 beneficiaries — 18% brand-name prescribing .

What stands out: ERIN DUNN, CNM filed 65 Medicare Part D claims in 2023 across SAN DIEGO, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ERIN DUNN, CNM at a glance

Quality data not reported

NPI registry status

Active

Issued 01/08/2007

NPI 1164570016

Primary specialty

Advanced Practice Midwife

Mid-sized

10,893 US NPIs in this specialty

Medicare Part D claims

65 34% vs specialty avg

2023 prescription claims

Specialty avg: 99

Specialty distribution in California

How Advanced Practice Midwife compares to other specialties among California providers

California providers

Advanced Practice Midwife share within California

1. Advanced Practice Midwife42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Advanced Practice Midwife share within California

Specialty board-certification context

Estimated specialty board-certified rate — Advanced Practice Midwife (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Advanced Practice Midwife ABMS/AOA estimate

Est. board-certified rate (Advanced Practice Midwife) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Advanced Practice Midwife) — 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).

ERIN DUNN, CNM is a Advanced Practice Midwife provider practicing in SAN DIEGO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: CNM. NPI: 1164570016. 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.

ERIN DUNN, CNM appears in the CMS NPPES registry as a Advanced Practice Midwife provider holding CNM credentials at 4647 ZION AVE, SAN DIEGO, CA, 92120, with a listed phone of (619) 528-5000. NPI 1164570016 was issued on 01/08/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUNN 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 65 prescription claims written by this provider, covering 28 Medicare beneficiaries and totaling roughly $8K in drug spend, split 18% brand-name and 82% 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.

Advanced Practice Midwife is a mid-sized specialty nationwide, with 10,893 enrolled providers across 55 states and an average of 99 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

4647 ZION AVE
SAN DIEGO, CA 92120

Provider Details

NPI 1164570016
Specialty Advanced Practice Midwife
Credentials CNM
Gender Female
NPI Issued 01/08/2007

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 ERIN DUNN, CNM. To verify ERIN DUNN, CNM'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 · Typical

ERIN DUNN, CNM — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 65 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.

65
Total Claims
$8K
Total Drug Cost
28
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
178
Total Day Supply
5,220
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$6K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
0.71
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
26

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

Advanced Practice Midwife Overview

How ERIN DUNN, CNM fits within the Advanced Practice Midwife landscape nationally.

10,893
Advanced Practice Midwife Providers in US
55
States with Advanced Practice Midwife
99
Avg Claims per Provider

ERIN DUNN, CNM's 65 claims are below the specialty average of 99.

Nearby Advanced Practice Midwife Providers in California

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

Compare Advanced Practice Midwife nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIN DUNN, CNM's specialty?
ERIN DUNN, CNM specializes in Advanced Practice Midwife and practices in SAN DIEGO, California. Credentials: CNM.
How much does ERIN DUNN, CNM prescribe under Medicare Part D?
In 2023, ERIN DUNN, CNM wrote 65 Medicare Part D claims totaling $8K in drug costs for 28 beneficiaries.
Where is ERIN DUNN, CNM located?
ERIN DUNN, CNM is located at 4647 ZION AVE, SAN DIEGO, CA, 92120. Phone: (619) 528-5000.
What is ERIN DUNN, CNM's NPI number?
ERIN DUNN, CNM's National Provider Identifier (NPI) is 1164570016, issued on 01/08/2007.
Does ERIN DUNN, CNM prescribe more brand-name or generic drugs?
ERIN DUNN, CNM's prescribing is 18% brand-name and 82% generic drugs by claim count, with $6K in brand drug costs.
How many Advanced Practice Midwife providers are there in the US?
There are 10,893 Advanced Practice Midwife providers across 55 states in the US. The average Advanced Practice Midwife provider writes 99 Medicare Part D claims per year.
What drugs does ERIN DUNN, CNM prescribe most often?
Based on 2023 Medicare Part D data, ERIN DUNN, CNM's most frequently prescribed drugs include Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIN DUNN, CNM accept Medicare?
ERIN DUNN, CNM appears in CMS Medicare data with 65 Part D claims and 28 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIN DUNN, CNM's credentials?
ERIN DUNN, CNM's NPI is 1164570016 with credentials CNM. 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