2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1811059660 M.D.
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JAMES SPEED, M.D.

Endocrinology, Diabetes & Metabolism Physician in GREELEY, Colorado. 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
2K
Medicare Part D claims · 355 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JAMES SPEED, M.D. is a Endocrinology, Diabetes & Metabolism Physician ([object Object]) practicing in GREELEY, Colorado with a Medicare Part D prescribing footprint of 2K claims across 355 beneficiaries — 45% brand-name prescribing .

What stands out: JAMES SPEED, M.D. filed 1,726 Medicare Part D claims in 2023 across GREELEY, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

JAMES SPEED, M.D. 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).

JAMES SPEED, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/15/2006

NPI 1811059660

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

1,726 35% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

Specialty distribution in Colorado

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Colorado providers

Colorado providers

Endocrinology, Diabetes & Metabolism Physician share within Colorado

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Colorado

Specialty board-certification context

Estimated specialty board-certified rate — Endocrinology, Diabetes & Metabolism Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endocrinology, Diabetes & Metabolism Physician ABMS/AOA estimate

Est. board-certified rate (Endocrinology, Diabetes & Metabolism Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endocrinology, Diabetes & Metabolism 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).

JAMES SPEED, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider practicing in GREELEY, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1811059660. 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.

JAMES SPEED, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 1800 15TH ST STE 200, GREELEY, CO, 80631, with a listed phone of (970) 378-4676. NPI 1811059660 was issued on 12/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SPEED 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 1,726 prescription claims written by this provider, covering 355 Medicare beneficiaries and totaling roughly $902K in drug spend, split 45% brand-name and 55% generic by claim count. 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.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

1800 15TH ST STE 200
GREELEY, CO 80631

Provider Details

NPI 1811059660
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Male
NPI Issued 12/15/2006

Brand vs generic prescribing mix · Above average

JAMES SPEED, M.D. — brand share 45.0%
Specialty average (est.)

45% brand-name claims vs 55% generic, on 1,726 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

1,726
Total Claims
$902K
Total Drug Cost
355
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,118
Total Day Supply
122,668
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$854K
Generic Drug Cost
$23K

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
1.66
Gender Split
60% female / 40% male
Age Distribution
<65: 77, 65-74: 171, 75-84: 91, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
239
Metformin Hcl
93
Metformin Hcl Er
Metformin Hcl
92
Jardiance
Empagliflozin
56
Atorvastatin Calcium
54
Synthroid
Levothyroxine Sodium
51
Tresiba Flextouch U-100
Insulin Degludec
50
Tresiba Flextouch U-200
Insulin Degludec
48
Novolog Flexpen
Insulin Aspart
46
Ozempic
Semaglutide
45

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

Endocrinology, Diabetes & Metabolism Physician Overview

How JAMES SPEED, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

JAMES SPEED, M.D.'s 1,726 claims are below the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Colorado

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES SPEED, M.D.'s specialty?
JAMES SPEED, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in GREELEY, Colorado. Credentials: M.D..
How much does JAMES SPEED, M.D. prescribe under Medicare Part D?
In 2023, JAMES SPEED, M.D. wrote 1,726 Medicare Part D claims totaling $902K in drug costs for 355 beneficiaries.
Where is JAMES SPEED, M.D. located?
JAMES SPEED, M.D. is located at 1800 15TH ST STE 200, GREELEY, CO, 80631. Phone: (970) 378-4676.
What is JAMES SPEED, M.D.'s NPI number?
JAMES SPEED, M.D.'s National Provider Identifier (NPI) is 1811059660, issued on 12/15/2006.
Does JAMES SPEED, M.D. prescribe more brand-name or generic drugs?
JAMES SPEED, M.D.'s prescribing is 45% brand-name and 55% generic drugs by claim count, with $854K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does JAMES SPEED, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JAMES SPEED, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Metformin Hcl, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES SPEED, M.D. accept Medicare?
JAMES SPEED, M.D. appears in CMS Medicare data with 1,726 Part D claims and 355 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES SPEED, M.D.'s credentials?
JAMES SPEED, M.D.'s NPI is 1811059660 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.
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