2026 NPPES data Colon & Rectal Surgery Physician NPI 1851300594 MD
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SUSAN PARKER, MD

Colon & Rectal Surgery Physician in TUCSON, Arizona. 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.
What the federal data reveals: SUSAN PARKER, MD is a Colon & Rectal Surgery Physician ([object Object]) practicing in TUCSON, Arizona .

What stands out: SUSAN PARKER, MD specializes in Colon & Rectal Surgery Physician and practices in TUCSON, Arizona, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SUSAN PARKER, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

SUSAN PARKER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/05/2006

NPI 1851300594

Primary specialty

Colon & Rectal Surgery Physician

Niche

1,608 US NPIs in this specialty

Specialty distribution in Arizona

How Colon & Rectal Surgery Physician compares to other specialties among Arizona providers

Arizona providers

Colon & Rectal Surgery Physician share within Arizona

1. Colon & Rectal Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Colon & Rectal Surgery Physician share within Arizona

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Colon & Rectal 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).

SUSAN PARKER, MD is a Colon & Rectal Surgery Physician provider practicing in TUCSON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1851300594. 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.

SUSAN PARKER, MD appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding MD credentials at 1501 N CAMPBELL AVE, TUCSON, AZ, 85724, with a listed phone of (520) 874-4135. NPI 1851300594 was issued on 08/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARKER 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Colon & Rectal Surgery Physician providers operate outside Part D entirely.

Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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

1501 N CAMPBELL AVE
TUCSON, AZ 85724

Provider Details

NPI 1851300594
Specialty Colon & Rectal Surgery Physician
Credentials MD
Gender Female
NPI Issued 08/05/2006

Colon & Rectal Surgery Physician Overview

How SUSAN PARKER, MD fits within the Colon & Rectal Surgery Physician landscape nationally.

1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider

Nearby Colon & Rectal Surgery Physician Providers in Arizona

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

Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SUSAN PARKER, MD's specialty?
SUSAN PARKER, MD specializes in Colon & Rectal Surgery Physician and practices in TUCSON, Arizona. Credentials: MD.
Where is SUSAN PARKER, MD located?
SUSAN PARKER, MD is located at 1501 N CAMPBELL AVE, TUCSON, AZ, 85724. Phone: (520) 874-4135.
What is SUSAN PARKER, MD's NPI number?
SUSAN PARKER, MD's National Provider Identifier (NPI) is 1851300594, issued on 08/05/2006.
How many Colon & Rectal Surgery Physician providers are there in the US?
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
Does SUSAN PARKER, MD accept Medicare?
SUSAN PARKER, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSAN PARKER, MD's credentials?
SUSAN PARKER, MD's NPI is 1851300594 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.
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