2026 NPPES data Obstetrics Physician NPI 1669524765 MD
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MILAGROS DIAZ, MD

Obstetrics Physician in WOODBURY, New York. 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
365
Medicare Part D claims · 156 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$124.28
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MILAGROS DIAZ, MD is a Obstetrics Physician ([object Object]) practicing in WOODBURY, New York with a Medicare Part D prescribing footprint of 365 claims across 156 beneficiaries — 28% brand-name prescribing . Industry payments of $124.28 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MILAGROS DIAZ, MD filed 365 Medicare Part D claims in 2023 across WOODBURY, New York. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MILAGROS 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).

MILAGROS DIAZ, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 01/17/2007

NPI 1669524765

Primary specialty

Obstetrics Physician

Niche

1,402 US NPIs in this specialty

Medicare Part D claims

365 14% vs specialty avg

2023 prescription claims

Specialty avg: 319

Specialty distribution in New York

How Obstetrics Physician compares to other specialties among New York providers

New York providers

Obstetrics Physician share within New York

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

Specialty board-certification context

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

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

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

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

MILAGROS DIAZ, MD is a Obstetrics Physician provider practicing in WOODBURY, New York, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1669524765. 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.

MILAGROS DIAZ, MD appears in the CMS NPPES registry as a Obstetrics Physician provider holding MD credentials at 157 FROEHLICH FARM BOULEVARD, WOODBURY, NY, 11797, with a listed phone of (516) 921-3168. NPI 1669524765 was issued on 01/17/2007. 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 365 prescription claims written by this provider, covering 156 Medicare beneficiaries and totaling roughly $47K in drug spend, split 28% brand-name and 72% 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.

Obstetrics Physician is a narrow specialty nationwide, with 1,402 enrolled providers across 54 states and an average of 319 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

157 FROEHLICH FARM BOULEVARD
WOODBURY, NY 11797

Provider Details

NPI 1669524765
Specialty Obstetrics Physician
Credentials MD
Gender Female
NPI Issued 01/17/2007

Hospital and facility affiliations

Facilities where MILAGROS 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.

NORTH SHORE LIJ MEDICAL GROUP AT NORTH NASSAU, PC
HUNTINGTON, NY

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 MILAGROS DIAZ, MD. Source: openpaymentsdata.cms.gov.

Total received

$124

Largest payer

Astellas Pharma US 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 — New York NYSBPMC 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 ~100K New York medical licensees in 2023 — they are NOT specific to MILAGROS DIAZ, MD. To verify MILAGROS DIAZ, MD's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

MILAGROS DIAZ, MD — brand share 28.0%
Specialty average (est.)

28% brand-name claims vs 72% generic, on 365 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.

365
Total Claims
$47K
Total Drug Cost
156
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
651
Total Day Supply
17,303
Brand vs Generic
28% brand / 72% generic
Brand Drug Cost
$35K
Generic Drug Cost
$12K
Antibiotic Claims
50

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
0.92
Gender Split
100% female / 0% male
Age Distribution
<65: 11, 65-74: 81, 75-84: 47, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Clotrimazole-Betamethasone
Clotrimazole/Betamethasone Dip
38
Estradiol
37
Betamethasone Valerate
22
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
21
Betamethasone Dipropionate
13
Vagifem
Estradiol
13
Raloxifene Hcl
12
Prolia
Denosumab
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 Physician Overview

How MILAGROS DIAZ, MD fits within the Obstetrics Physician landscape nationally.

1,402
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider

MILAGROS DIAZ, MD's 365 claims are above the specialty average of 319.

Nearby Obstetrics Physician Providers in New York

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

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

Frequently Asked Questions

What is MILAGROS DIAZ, MD's specialty?
MILAGROS DIAZ, MD specializes in Obstetrics Physician and practices in WOODBURY, New York. Credentials: MD.
How much does MILAGROS DIAZ, MD prescribe under Medicare Part D?
In 2023, MILAGROS DIAZ, MD wrote 365 Medicare Part D claims totaling $47K in drug costs for 156 beneficiaries.
Where is MILAGROS DIAZ, MD located?
MILAGROS DIAZ, MD is located at 157 FROEHLICH FARM BOULEVARD, WOODBURY, NY, 11797. Phone: (516) 921-3168.
What is MILAGROS DIAZ, MD's NPI number?
MILAGROS DIAZ, MD's National Provider Identifier (NPI) is 1669524765, issued on 01/17/2007.
Does MILAGROS DIAZ, MD prescribe more brand-name or generic drugs?
MILAGROS DIAZ, MD's prescribing is 28% brand-name and 72% generic drugs by claim count, with $35K in brand drug costs.
How many Obstetrics Physician providers are there in the US?
There are 1,402 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does MILAGROS DIAZ, MD prescribe most often?
Based on 2023 Medicare Part D data, MILAGROS DIAZ, MD's most frequently prescribed drugs include Clotrimazole-Betamethasone, Estradiol, Betamethasone Valerate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MILAGROS DIAZ, MD accept Medicare?
MILAGROS DIAZ, MD appears in CMS Medicare data with 365 Part D claims and 156 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MILAGROS DIAZ, MD's credentials?
MILAGROS DIAZ, MD's NPI is 1669524765 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