2026 NPPES data Pediatric Urology Physician NPI 1669665196 M.D.
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DAVID CHALMERS, M.D.

Pediatric Urology Physician in SOUTH PORTLAND, Maine. 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
17
Medicare Part D claims · Pediatric Urology Physician avg: 654
MIPS score
98.0699/100
▲ 15 pts above national avg 83.1 · [object Object]

What the federal data shows

DAVID CHALMERS, M.D. reported a CMS MIPS final score of 98.0699/100 — above the 83.1 national average — and filed 17 Medicare Part D claims in 2023.

98.0699/100
MIPS score · +15 vs avg
17
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.

DAVID CHALMERS, M.D.'s MIPS score vs every scored U.S. clinician

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

98 Top 11% higher than 89% 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

Board certification likely (heuristic — not verified)

DAVID CHALMERS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 DAVID CHALMERS, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 08/17/2007

NPI 1669665196

Primary specialty

Pediatric Urology Physician

Rare

348 US NPIs in this specialty

Medicare Part D claims

17 97% vs specialty avg

2023 prescription claims

Specialty avg: 654

MIPS final score

98.0699/100 14.96990000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maine

How Pediatric Urology Physician compares to other specialties among Maine providers

Maine providers

Pediatric Urology Physician share within Maine

1. Pediatric Urology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatric Urology Physician share within Maine

Medicare quality performance — MIPS

DAVID CHALMERS, M.D.'s 2023 MIPS final score plotted against the Pediatric Urology Physician national average

High performer (top quartile)
MIPS Final Score
98.0699/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Pediatric Urology Physician) — 98.0699/100 vs national avg 83.1

0%100%National avg83%98.1%
MIPS final score (Pediatric Urology Physician) — 98.0699/100 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).

DAVID CHALMERS, M.D. appears in the CMS NPPES registry as a Pediatric Urology Physician provider holding M.D. credentials at 100 BRICKHILL AVE, SOUTH PORTLAND, ME, 04106, with a listed phone of (207) 773-1728. NPI 1669665196 was issued on 08/17/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHALMERS 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 17 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $268 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.0699/100 for the 2023 performance year (Quality 86.1398), compared with the national average of 83.1.

Pediatric Urology Physician is a narrow specialty nationwide, with 348 enrolled providers across 43 states and an average of 654 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

100 BRICKHILL AVE
SOUTH PORTLAND, ME 04106

Provider Details

NPI 1669665196
Specialty Pediatric Urology Physician
Credentials M.D.
Gender Male
NPI Issued 08/17/2007

CMS Quality Score (MIPS)

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

98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where DAVID CHALMERS, M.D. 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.

MAINEHEALTH
BIDDEFORD, ME

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.

17
Total Claims
$268
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19
Total Day Supply
372
Generic Drug Cost
$200
Antibiotic Claims
12

Patient Demographics

Average Patient Age
55.2 years
Avg HCC Risk Score
2.01

Pediatric Urology Physician Overview

How DAVID CHALMERS, M.D. fits within the Pediatric Urology Physician landscape nationally.

348
Pediatric Urology Physician Providers in US
43
States with Pediatric Urology Physician
654
Avg Claims per Provider

DAVID CHALMERS, M.D.'s 17 claims are below the specialty average of 654.

Nearby Pediatric Urology Physician Providers in Maine

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

Compare Pediatric Urology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID CHALMERS, M.D.'s specialty?
DAVID CHALMERS, M.D. specializes in Pediatric Urology Physician and practices in SOUTH PORTLAND, Maine. Credentials: M.D..
How much does DAVID CHALMERS, M.D. prescribe under Medicare Part D?
In 2023, DAVID CHALMERS, M.D. wrote 17 Medicare Part D claims totaling $268 in drug costs for N/A beneficiaries.
What is DAVID CHALMERS, M.D.'s Medicare quality score?
DAVID CHALMERS, M.D. has a CMS MIPS Final Score of 98.0699/100 (Quality: 86.1398). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DAVID CHALMERS, M.D. located?
DAVID CHALMERS, M.D. is located at 100 BRICKHILL AVE, SOUTH PORTLAND, ME, 04106. Phone: (207) 773-1728.
What is DAVID CHALMERS, M.D.'s NPI number?
DAVID CHALMERS, M.D.'s National Provider Identifier (NPI) is 1669665196, issued on 08/17/2007.
How many Pediatric Urology Physician providers are there in the US?
There are 348 Pediatric Urology Physician providers across 43 states in the US. The average Pediatric Urology Physician provider writes 654 Medicare Part D claims per year.
Does DAVID CHALMERS, M.D. accept Medicare?
DAVID CHALMERS, M.D. appears in CMS Medicare data with 17 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID CHALMERS, M.D.'s credentials?
DAVID CHALMERS, M.D.'s NPI is 1669665196 with credentials M.D.. 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