2026 NPPES data Obstetrics & Gynecology Physician NPI 1417098369 MD
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MICHELLE DIAZ, MD

Obstetrics & Gynecology Physician in SILVER CITY, New Mexico. 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
355
Medicare Part D claims · 118 beneficiaries · Obstetrics & Gynecology Physician avg: 179
What the federal data reveals: MICHELLE DIAZ, MD is a Obstetrics & Gynecology Physician ([object Object]) practicing in SILVER CITY, New Mexico with a Medicare Part D prescribing footprint of 355 claims across 118 beneficiaries .

What stands out: MICHELLE DIAZ, MD filed 355 Medicare Part D claims in 2023 across SILVER CITY, New Mexico. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MICHELLE DIAZ, MD 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).

MICHELLE DIAZ, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 02/12/2007

NPI 1417098369

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

355 98% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in New Mexico

How Obstetrics & Gynecology Physician compares to other specialties among New Mexico providers

New Mexico providers

Obstetrics & Gynecology Physician share within New Mexico

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within New Mexico

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

MICHELLE DIAZ, MD is a Obstetrics & Gynecology Physician provider practicing in SILVER CITY, New Mexico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1417098369. 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.

MICHELLE DIAZ, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 1618 E PINE ST, SILVER CITY, NM, 88061, with a listed phone of (575) 388-1561. NPI 1417098369 was issued on 02/12/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ 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 355 prescription claims written by this provider, covering 118 Medicare beneficiaries and totaling roughly $52K in drug spend. 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

1618 E PINE ST
SILVER CITY, NM 88061

Provider Details

NPI 1417098369
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 02/12/2007

Hospital and facility affiliations

Facilities where MICHELLE DIAZ, MD 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.

VICTOR A. NWACHUKU, M.D., PC
SILVER CITY, NM

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

355
Total Claims
$52K
Total Drug Cost
118
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
730
Total Day Supply
20,572
Generic Drug Cost
$19K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
0.95

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
172
Myrbetriq
Mirabegron
36
Fluconazole
11
Premarin
"Estrogens
N/A

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

Obstetrics & Gynecology Physician Overview

How MICHELLE DIAZ, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

MICHELLE DIAZ, MD's 355 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in New Mexico

Other clinicians with the same primary specialty enrolled in New Mexico, drawn from the same CMS NPPES roster as DIAZ.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHELLE DIAZ, MD's specialty?
MICHELLE DIAZ, MD specializes in Obstetrics & Gynecology Physician and practices in SILVER CITY, New Mexico. Credentials: MD.
How much does MICHELLE DIAZ, MD prescribe under Medicare Part D?
In 2023, MICHELLE DIAZ, MD wrote 355 Medicare Part D claims totaling $52K in drug costs for 118 beneficiaries.
Where is MICHELLE DIAZ, MD located?
MICHELLE DIAZ, MD is located at 1618 E PINE ST, SILVER CITY, NM, 88061. Phone: (575) 388-1561.
What is MICHELLE DIAZ, MD's NPI number?
MICHELLE DIAZ, MD's National Provider Identifier (NPI) is 1417098369, issued on 02/12/2007.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does MICHELLE DIAZ, MD prescribe most often?
Based on 2023 Medicare Part D data, MICHELLE DIAZ, MD's most frequently prescribed drugs include Estradiol, Myrbetriq, Fluconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHELLE DIAZ, MD accept Medicare?
MICHELLE DIAZ, MD appears in CMS Medicare data with 355 Part D claims and 118 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHELLE DIAZ, MD's credentials?
MICHELLE DIAZ, MD's NPI is 1417098369 with credentials MD. 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