2026 NPPES data Surgery Physician NPI 1780777896 MD
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CHRISTOPHER MASCARENHAS, MD

Surgery Physician in NASHVILLE, Tennessee. 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
166
Medicare Part D claims · 68 beneficiaries · Surgery Physician avg: 169
Industry payments
$21.32
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHRISTOPHER MASCARENHAS, MD filed 166 Medicare Part D claims in 2023 as a Surgery Physician in NASHVILLE, Tennessee.

166
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.

CHRISTOPHER MASCARENHAS, MD's Medicare Part D volume vs every U.S. prescriber

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

166 35th percentile higher than 35% 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)

CHRISTOPHER MASCARENHAS, 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 CHRISTOPHER MASCARENHAS, MD?

Quality data not reported

NPI registry status

Active

Issued 10/02/2006

NPI 1780777896

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

166 2% vs specialty avg

2023 prescription claims

Specialty avg: 169

Specialty distribution in Tennessee

How Surgery Physician compares to other specialties among Tennessee providers

Tennessee providers

Surgery Physician share within Tennessee

1. Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgery Physician share within Tennessee

Specialty board-certification context

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

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

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

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

CHRISTOPHER MASCARENHAS, MD is a Surgery Physician provider practicing in NASHVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1780777896. 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.

CHRISTOPHER MASCARENHAS, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 2100 CHURCH ST STE 225, NASHVILLE, TN, 37203, with a listed phone of (615) 329-7933. NPI 1780777896 was issued on 10/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MASCARENHAS 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 166 prescription claims written by this provider, covering 68 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 28.9%. 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.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

2100 CHURCH ST STE 225
NASHVILLE, TN 37203

Provider Details

NPI 1780777896
Specialty Surgery Physician
Credentials MD
Gender Male
NPI Issued 10/02/2006

Hospital and facility affiliations

Facilities where CHRISTOPHER MASCARENHAS, 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.

ADVANCED DIAGNOSTIC IMAGING PC
NASHVILLE, TN

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 CHRISTOPHER MASCARENHAS, MD. Source: openpaymentsdata.cms.gov.

Total received

$21

Largest payer

ABBVIE 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.

Medicare Part D Prescribing Data

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

166
Total Claims
$3K
Total Drug Cost
68
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
168
Total Day Supply
1,289
Generic Drug Cost
$2K
Opioid Claims
48 (28.9% rate)
Antibiotic Claims
72

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.17
Gender Split
57% female / 43% 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
Metronidazole
40
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
38
Neomycin Sulfate
21
Loperamide
Loperamide Hcl
11

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

Surgery Physician Overview

How CHRISTOPHER MASCARENHAS, MD fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

CHRISTOPHER MASCARENHAS, MD's 166 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in Tennessee

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

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

Frequently Asked Questions

What is CHRISTOPHER MASCARENHAS, MD's specialty?
CHRISTOPHER MASCARENHAS, MD specializes in Surgery Physician and practices in NASHVILLE, Tennessee. Credentials: MD.
How much does CHRISTOPHER MASCARENHAS, MD prescribe under Medicare Part D?
In 2023, CHRISTOPHER MASCARENHAS, MD wrote 166 Medicare Part D claims totaling $3K in drug costs for 68 beneficiaries.
Where is CHRISTOPHER MASCARENHAS, MD located?
CHRISTOPHER MASCARENHAS, MD is located at 2100 CHURCH ST STE 225, NASHVILLE, TN, 37203. Phone: (615) 329-7933.
What is CHRISTOPHER MASCARENHAS, MD's NPI number?
CHRISTOPHER MASCARENHAS, MD's National Provider Identifier (NPI) is 1780777896, issued on 10/02/2006.
Does CHRISTOPHER MASCARENHAS, MD prescribe opioids?
Yes, CHRISTOPHER MASCARENHAS, MD had 48 opioid claims in 2023 with an opioid prescribing rate of 28.9%.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does CHRISTOPHER MASCARENHAS, MD prescribe most often?
Based on 2023 Medicare Part D data, CHRISTOPHER MASCARENHAS, MD's most frequently prescribed drugs include Metronidazole, Oxycodone-Acetaminophen, Neomycin Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTOPHER MASCARENHAS, MD accept Medicare?
CHRISTOPHER MASCARENHAS, MD appears in CMS Medicare data with 166 Part D claims and 68 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTOPHER MASCARENHAS, MD's credentials?
CHRISTOPHER MASCARENHAS, MD's NPI is 1780777896 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