2026 NPPES data Specialist NPI 1144228149 MD
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Warren Buchalter, MD

Specialist in Glen Burnie, Maryland. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 69,658 in Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
815
Medicare Part D claims · 384 beneficiaries · Specialist avg: 1K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.1/100
▼ 0 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Warren Buchalter, MD reported a CMS MIPS final score of 83.1/100 - below the 83.1 national average - and filed 815 Medicare Part D claims in 2023.

83.1/100
MIPS score · 0 vs avg
815
Part D claims, 2023
98%
generic prescribing

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.

Warren Buchalter, MD's MIPS score vs every scored U.S. clinician

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

83 42nd percentile higher than 42% 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%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. 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

Where Warren Buchalter, MD sits

This provider among specialist peers

Across the 4,869 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Warren Buchalter, MD writes more Part D claims than 48% of them and scores higher on MIPS quality than 54% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 60Warren Buchalter, MD-Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 54
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one specialist peer from a representative sample of 60; the gold marker is Warren Buchalter, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Warren Buchalter, MD?

Near national average

NPI registry status

Active

Issued 07/13/2005

NPI 1144228149

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

815 45% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

83.1/100 0 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Maryland

How Specialist compares to other specialties among Maryland providers

Maryland providers

Largest specialties in Maryland (% of in-state providers)

Behavior Technician - 14.1%Behavior Technician14.1%Clinical Social Worker - 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program - 4.5%Student in an Organized Health Care Education/Training Program4.5%Home Health Aide - 4.4%Home Health Aide4.4%Physical Therapist - 3.9%Physical Therapist3.9%Pharmacist - 3.6%Pharmacist3.6%Specialist - 0.7%Specialist0.7%
Largest specialties in Maryland (% of in-state providers)

Medicare quality performance, MIPS

Warren Buchalter, MD's 2023 MIPS final score plotted against the Specialist national average

Near national average
MIPS Final Score
83.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) - 83.1/100 vs national avg 83.1

0%100%National avg83%83.1%
MIPS final score (Specialist) - 83.1/100 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).

Warren Buchalter, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 802 LANDMARK DR, STE 119, Glen Burnie, MD, 21061, with a listed phone of (410) 760-8840. NPI 1144228149 was issued on 07/13/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Buchalter 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 815 prescription claims written by this provider, covering 384 Medicare beneficiaries and totaling roughly $23K in drug spend, split 2% brand-name and 98% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.1/100 for the 2023 performance year (Quality 68.7, Cost 76.6), compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

802 LANDMARK DR, STE 119
Glen Burnie, MD 21061

Provider Details

NPI 1144228149
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 07/13/2005

CMS Quality Score (MIPS)

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

83.0658
Final Score
Avg: 83.1
68.6607
Quality
76.5588
Cost
98
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Warren Buchalter, 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.

Johns Hopkins Regional Physicians LLC
Columbia, MD

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

Brand vs generic prescribing mix · Generic-heavy

Warren Buchalter, MD - brand share 2.0%
Specialist average

2% brand-name claims vs 98% generic, on 815 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.

815
Total Claims
$23K
Total Drug Cost
384
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,302
Total Day Supply
32,456
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$3K
Generic Drug Cost
$20K
Antibiotic Claims
119

Patient Demographics

Average Patient Age
74.3 years
Avg HCC Risk Score
1.15
Gender Split
60% female / 40% male
Age Distribution
<65: 24, 65-74: 167, 75-84: 152, 85+: 41

Top Prescribed Drugs (Medicare Part D)

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

What Warren Buchalter, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Famotidine
181
Fluticasone Propionate
90
Pantoprazole Sodium
70
Cefdinir
63
Methylprednisolone
57
Azelastine Hcl
46
Ipratropium Bromide
40
Mupirocin
40
Fluocinolone Acetonide Oil
34
Doxycycline Monohydrate
24

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

Specialist Overview

How Warren Buchalter, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

Warren Buchalter, MD's 815 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Maryland

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

Compare Specialist nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Maryland medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Specialist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Warren Buchalter, MD's specialty?
Warren Buchalter, MD specializes in Specialist and practices in Glen Burnie, Maryland. Credentials: MD.
How much does Warren Buchalter, MD prescribe under Medicare Part D?
In 2023, Warren Buchalter, MD wrote 815 Medicare Part D claims totaling $23K in drug costs for 384 beneficiaries.
What is Warren Buchalter, MD's Medicare quality score?
Warren Buchalter, MD has a CMS MIPS Final Score of 83.1/100 (Quality: 68.7, Cost: 76.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Warren Buchalter, MD located?
Warren Buchalter, MD is located at 802 LANDMARK DR, STE 119, Glen Burnie, MD, 21061. Phone: (410) 760-8840.
What is Warren Buchalter, MD's NPI number?
Warren Buchalter, MD's National Provider Identifier (NPI) is 1144228149, issued on 07/13/2005.
Does Warren Buchalter, MD prescribe more brand-name or generic drugs?
Warren Buchalter, MD's prescribing is 2% brand-name and 98% generic drugs by claim count, with $3K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Warren Buchalter, MD prescribe most often?
Based on 2023 Medicare Part D data, Warren Buchalter, MD's most frequently prescribed drugs include Famotidine, Fluticasone Propionate, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Warren Buchalter, MD accept Medicare?
Warren Buchalter, MD appears in CMS Medicare data with 815 Part D claims and 384 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Warren Buchalter, MD's credentials?
Warren Buchalter, MD's NPI is 1144228149 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.
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

Compiled from official public sources by the PlainDoctor editorial team.