2026 NPPES data Advanced Practice Midwife NPI 1457373219 CNM
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MEREDITH HAMMIG, CNM

Advanced Practice Midwife in SANTA CRUZ, 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
97
Medicare Part D claims · 36 beneficiaries · Advanced Practice Midwife avg: 99
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.5085/100
▲ 13 pts above national avg 83.1 · [object Object]
Industry payments
$15.87
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MEREDITH HAMMIG, CNM reported a CMS MIPS final score of 96.5085/100 — above the 83.1 national average — and filed 97 Medicare Part D claims in 2023.

96.5085/100
MIPS score · +13 vs avg
97
Part D claims, 2023
75%
generic prescribing
$15.87
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.

MEREDITH HAMMIG, CNM's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

97 Top 17% higher than 83% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

What does the federal data show about MEREDITH HAMMIG, CNM?

High performer (top quartile)

NPI registry status

Active

Issued 07/24/2006

NPI 1457373219

Primary specialty

Advanced Practice Midwife

Mid-sized

10,893 US NPIs in this specialty

Medicare Part D claims

97 2% vs specialty avg

2023 prescription claims

Specialty avg: 99

MIPS final score

96.5085/100 13.408500000000004% pts

Exceptional band

vs 83.1 national avg

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

Medicare quality performance — MIPS

MEREDITH HAMMIG, CNM's 2023 MIPS final score plotted against the Advanced Practice Midwife national average

High performer (top quartile)
MIPS Final Score
96.5085/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Advanced Practice Midwife) — 96.5085/100 vs national avg 83.1

0%100%National avg83%96.5%
MIPS final score (Advanced Practice Midwife) — 96.5085/100 vs national avg 83.1

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).

MEREDITH HAMMIG, CNM appears in the CMS NPPES registry as a Advanced Practice Midwife provider holding CNM credentials at 1779 DOMINICAN WAY, SANTA CRUZ, CA, 95065, with a listed phone of (831) 479-4966. NPI 1457373219 was issued on 07/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMMIG 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 97 prescription claims written by this provider, covering 36 Medicare beneficiaries and totaling roughly $16K in drug spend, split 25% brand-name and 75% 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 96.5085/100 for the 2023 performance year (Quality 80.342), compared with the national average of 83.1.

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

1779 DOMINICAN WAY
SANTA CRUZ, CA 95065

Provider Details

NPI 1457373219
Specialty Advanced Practice Midwife
Credentials CNM
Gender Female
NPI Issued 07/24/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

96.5085
Final Score
Avg: 83.1
80.342
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where MEREDITH HAMMIG, CNM 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.

DIGNITY HEALTH MEDICAL FOUNDATION
SANTA CRUZ, 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).

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 MEREDITH HAMMIG, CNM. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

Biogen, Inc.

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 MEREDITH HAMMIG, CNM. To verify MEREDITH HAMMIG, 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 · Above average

MEREDITH HAMMIG, CNM — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 97 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.

97
Total Claims
$16K
Total Drug Cost
36
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
212
Total Day Supply
5,921
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$9K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
67.3 years
Avg HCC Risk Score
0.90
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
25
Estradiol (Twice Weekly)
Estradiol
12
Progesterone
"Progesterone
N/A

* 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 MEREDITH HAMMIG, 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

MEREDITH HAMMIG, CNM's 97 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 HAMMIG.

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

Frequently Asked Questions

What is MEREDITH HAMMIG, CNM's specialty?
MEREDITH HAMMIG, CNM specializes in Advanced Practice Midwife and practices in SANTA CRUZ, California. Credentials: CNM.
How much does MEREDITH HAMMIG, CNM prescribe under Medicare Part D?
In 2023, MEREDITH HAMMIG, CNM wrote 97 Medicare Part D claims totaling $16K in drug costs for 36 beneficiaries.
What is MEREDITH HAMMIG, CNM's Medicare quality score?
MEREDITH HAMMIG, CNM has a CMS MIPS Final Score of 96.5085/100 (Quality: 80.342). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MEREDITH HAMMIG, CNM located?
MEREDITH HAMMIG, CNM is located at 1779 DOMINICAN WAY, SANTA CRUZ, CA, 95065. Phone: (831) 479-4966.
What is MEREDITH HAMMIG, CNM's NPI number?
MEREDITH HAMMIG, CNM's National Provider Identifier (NPI) is 1457373219, issued on 07/24/2006.
Does MEREDITH HAMMIG, CNM prescribe more brand-name or generic drugs?
MEREDITH HAMMIG, CNM's prescribing is 25% brand-name and 75% generic drugs by claim count, with $9K 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 MEREDITH HAMMIG, CNM prescribe most often?
Based on 2023 Medicare Part D data, MEREDITH HAMMIG, CNM's most frequently prescribed drugs include Estradiol, Estradiol (Twice Weekly), Progesterone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MEREDITH HAMMIG, CNM accept Medicare?
MEREDITH HAMMIG, CNM appears in CMS Medicare data with 97 Part D claims and 36 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MEREDITH HAMMIG, CNM's credentials?
MEREDITH HAMMIG, CNM's NPI is 1457373219 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.
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