2026 NPPES data Hematology (Internal Medicine) Physician NPI 1407938400 MD
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TIMOTHY SINGLETON, MD

Hematology (Internal Medicine) Physician in MINNEAPOLIS, Minnesota. 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: TIMOTHY SINGLETON, MD is a Hematology (Internal Medicine) Physician ([object Object]) practicing in MINNEAPOLIS, Minnesota .

What stands out: TIMOTHY SINGLETON, MD specializes in Hematology (Internal Medicine) Physician and practices in MINNEAPOLIS, Minnesota, 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 certification likely (heuristic — not verified)

TIMOTHY SINGLETON, 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).

TIMOTHY SINGLETON, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 10/19/2006

NPI 1407938400

Primary specialty

Hematology (Internal Medicine) Physician

Niche

1,436 US NPIs in this specialty

Specialty distribution in Minnesota

How Hematology (Internal Medicine) Physician compares to other specialties among Minnesota providers

Minnesota providers

Hematology (Internal Medicine) Physician share within Minnesota

1. Hematology (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology (Internal Medicine) Physician share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Hematology (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hematology (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Hematology (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hematology (Internal Medicine) 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).

TIMOTHY SINGLETON, MD is a Hematology (Internal Medicine) Physician provider practicing in MINNEAPOLIS, Minnesota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1407938400. 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.

TIMOTHY SINGLETON, MD appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding MD credentials at 2525 CHICAGO AVE STE B600, MINNEAPOLIS, MN, 55404, with a listed phone of (612) 813-6280. NPI 1407938400 was issued on 10/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SINGLETON 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 Hematology (Internal Medicine) Physician providers operate outside Part D entirely.

Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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

2525 CHICAGO AVE STE B600
MINNEAPOLIS, MN 55404

Provider Details

NPI 1407938400
Specialty Hematology (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 10/19/2006

Hospital and facility affiliations

Facilities where TIMOTHY SINGLETON, 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.

CHILDREN'S HEALTH CARE
MINNEAPOLIS, MN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Hematology (Internal Medicine) Physician Overview

How TIMOTHY SINGLETON, MD fits within the Hematology (Internal Medicine) Physician landscape nationally.

1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider

Nearby Hematology (Internal Medicine) Physician Providers in Minnesota

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

Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIMOTHY SINGLETON, MD's specialty?
TIMOTHY SINGLETON, MD specializes in Hematology (Internal Medicine) Physician and practices in MINNEAPOLIS, Minnesota. Credentials: MD.
Where is TIMOTHY SINGLETON, MD located?
TIMOTHY SINGLETON, MD is located at 2525 CHICAGO AVE STE B600, MINNEAPOLIS, MN, 55404. Phone: (612) 813-6280.
What is TIMOTHY SINGLETON, MD's NPI number?
TIMOTHY SINGLETON, MD's National Provider Identifier (NPI) is 1407938400, issued on 10/19/2006.
How many Hematology (Internal Medicine) Physician providers are there in the US?
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
Does TIMOTHY SINGLETON, MD accept Medicare?
TIMOTHY SINGLETON, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIMOTHY SINGLETON, MD's credentials?
TIMOTHY SINGLETON, MD's NPI is 1407938400 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