2026 NPPES data Oral & Maxillofacial Surgery (D.M.D.) NPI 1710940788 MD
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WARREN HAMMERT, MD

Oral & Maxillofacial Surgery (D.M.D.) in ROCHESTER, 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
35
Medicare Part D claims · 20 beneficiaries · Oral & Maxillofacial Surgery (D.M.D.) avg: 324
Industry payments
$12.4K
27 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WARREN HAMMERT, MD filed 35 Medicare Part D claims in 2023 as a Oral & Maxillofacial Surgery (D.M.D.) in ROCHESTER, New York.

35
Part D claims, 2023
Likely
board-certified (heuristic)

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.

WARREN HAMMERT, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

35 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

Board certification likely (heuristic — not verified)

WARREN HAMMERT, 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).

What does the federal data show about WARREN HAMMERT, MD?

Quality data not reported

NPI registry status

Active

Issued 04/10/2006

NPI 1710940788

Primary specialty

Oral & Maxillofacial Surgery (D.M.D.)

Niche

1,112 US NPIs in this specialty

Medicare Part D claims

35 89% vs specialty avg

2023 prescription claims

Specialty avg: 324

Specialty distribution in New York

How Oral & Maxillofacial Surgery (D.M.D.) compares to other specialties among New York providers

New York providers

Oral & Maxillofacial Surgery (D.M.D.) share within New York

1. Oral & Maxillofacial Surgery (D.M.D.)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oral & Maxillofacial Surgery (D.M.D.) share within New York

Specialty board-certification context

Estimated specialty board-certified rate — Oral & Maxillofacial Surgery (D.M.D.) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oral & Maxillofacial Surgery (D.M.D.) ABMS/AOA estimate

Est. board-certified rate (Oral & Maxillofacial Surgery (D.M.D.)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oral & Maxillofacial Surgery (D.M.D.)) — 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).

WARREN HAMMERT, MD appears in the CMS NPPES registry as a Oral & Maxillofacial Surgery (D.M.D.) provider holding MD credentials at 601 ELMWOOD AVE, ROCHESTER, NY, 14642, with a listed phone of (585) 275-5117. NPI 1710940788 was issued on 04/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMMERT 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 35 prescription claims written by this provider, covering 20 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 45.7%. 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.

Oral & Maxillofacial Surgery (D.M.D.) is a narrow specialty nationwide, with 1,112 enrolled providers across 52 states and an average of 324 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

601 ELMWOOD AVE
ROCHESTER, NY 14642

Provider Details

NPI 1710940788
Specialty Oral & Maxillofacial Surgery (D.M.D.)
Credentials MD
Gender Male
NPI Issued 04/10/2006

Hospital and facility affiliations

Facilities where WARREN HAMMERT, 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.

DUKE HEALTH INTEGRATED PRACTICE INC
DURHAM, NC

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 WARREN HAMMERT, MD. Source: openpaymentsdata.cms.gov.

Total received

$12.4K

Largest payer

Trimed, 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 WARREN HAMMERT, MD. To verify WARREN HAMMERT, 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.

Medicare Part D Prescribing Data

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

35
Total Claims
$3K
Total Drug Cost
20
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
35
Total Day Supply
277
Brand Drug Cost
$0
Generic Drug Cost
$3K
Opioid Claims
16 (45.7% rate)
Antibiotic Claims
13

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
1.15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone Hcl
12

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

Oral & Maxillofacial Surgery (D.M.D.) Overview

How WARREN HAMMERT, MD fits within the Oral & Maxillofacial Surgery (D.M.D.) landscape nationally.

1,112
Oral & Maxillofacial Surgery (D.M.D.) Providers in US
52
States with Oral & Maxillofacial Surgery (D.M.D.)
324
Avg Claims per Provider

WARREN HAMMERT, MD's 35 claims are below the specialty average of 324.

Nearby Oral & Maxillofacial Surgery (D.M.D.) Providers in New York

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

Compare Oral & Maxillofacial Surgery (D.M.D.) nationally: see state-by-state distribution →

Frequently Asked Questions

What is WARREN HAMMERT, MD's specialty?
WARREN HAMMERT, MD specializes in Oral & Maxillofacial Surgery (D.M.D.) and practices in ROCHESTER, New York. Credentials: MD.
How much does WARREN HAMMERT, MD prescribe under Medicare Part D?
In 2023, WARREN HAMMERT, MD wrote 35 Medicare Part D claims totaling $3K in drug costs for 20 beneficiaries.
Where is WARREN HAMMERT, MD located?
WARREN HAMMERT, MD is located at 601 ELMWOOD AVE, ROCHESTER, NY, 14642. Phone: (585) 275-5117.
What is WARREN HAMMERT, MD's NPI number?
WARREN HAMMERT, MD's National Provider Identifier (NPI) is 1710940788, issued on 04/10/2006.
Does WARREN HAMMERT, MD prescribe opioids?
Yes, WARREN HAMMERT, MD had 16 opioid claims in 2023 with an opioid prescribing rate of 45.7%.
How many Oral & Maxillofacial Surgery (D.M.D.) providers are there in the US?
There are 1,112 Oral & Maxillofacial Surgery (D.M.D.) providers across 52 states in the US. The average Oral & Maxillofacial Surgery (D.M.D.) provider writes 324 Medicare Part D claims per year.
What drugs does WARREN HAMMERT, MD prescribe most often?
Based on 2023 Medicare Part D data, WARREN HAMMERT, MD's most frequently prescribed drugs include Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WARREN HAMMERT, MD accept Medicare?
WARREN HAMMERT, MD appears in CMS Medicare data with 35 Part D claims and 20 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WARREN HAMMERT, MD's credentials?
WARREN HAMMERT, MD's NPI is 1710940788 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