2026 NPPES data Family Medicine Physician NPI 1407921372 D.O.
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ALLEN FISHER, D.O.

Family Medicine Physician in GLEN BURNIE, Maryland. 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 · 172 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ALLEN FISHER, D.O. filed 1,571 Medicare Part D claims in 2023 as a Family Medicine Physician in GLEN BURNIE, Maryland, prescribing 92% generic.

2K
Part D claims, 2023
92%
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.

ALLEN FISHER, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

1,571 Top 19% higher than 81% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 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-eligible specialty (heuristic — not verified)

ALLEN FISHER, D.O. 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).

What does the federal data show about ALLEN FISHER, D.O.?

Quality data not reported

NPI registry status

Active

Issued 11/22/2006

NPI 1407921372

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,571 54% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Maryland

How Family Medicine Physician compares to other specialties among Maryland providers

Maryland providers

Family Medicine Physician share within Maryland

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

Specialty board-certification context

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

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

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

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

ALLEN FISHER, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 1414 CRAIN HWY N STE 5A, GLEN BURNIE, MD, 21061, with a listed phone of (410) 766-7016. NPI 1407921372 was issued on 11/22/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FISHER 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 1,571 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $75K in drug spend, split 8% brand-name and 92% 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

1414 CRAIN HWY N STE 5A
GLEN BURNIE, MD 21061

Provider Details

NPI 1407921372
Specialty Family Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 11/22/2006

Brand vs generic prescribing mix · Generic-heavy

ALLEN FISHER, D.O. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,571 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.

1,571
Total Claims
$75K
Total Drug Cost
172
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,254
Total Day Supply
125,104
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$45K
Generic Drug Cost
$30K
Antibiotic Claims
54

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
0.88
Gender Split
41% female / 59% male

Top Prescribed Drugs (Medicare Part D)

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

What ALLEN FISHER, D.O. 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
Lisinopril
192
Atorvastatin Calcium
136
Amlodipine Besylate
125
Metformin Hcl
77
Losartan Potassium
73
Hydrochlorothiazide
60
Levothyroxine Sodium
54
Rosuvastatin Calcium
53
Albuterol Sulfate Hfa
Albuterol Sulfate
47
Allopurinol
39

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

Family Medicine Physician Overview

How ALLEN FISHER, D.O. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

ALLEN FISHER, D.O.'s 1,571 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Maryland

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALLEN FISHER, D.O.'s specialty?
ALLEN FISHER, D.O. specializes in Family Medicine Physician and practices in GLEN BURNIE, Maryland. Credentials: D.O..
How much does ALLEN FISHER, D.O. prescribe under Medicare Part D?
In 2023, ALLEN FISHER, D.O. wrote 1,571 Medicare Part D claims totaling $75K in drug costs for 172 beneficiaries.
Where is ALLEN FISHER, D.O. located?
ALLEN FISHER, D.O. is located at 1414 CRAIN HWY N STE 5A, GLEN BURNIE, MD, 21061. Phone: (410) 766-7016.
What is ALLEN FISHER, D.O.'s NPI number?
ALLEN FISHER, D.O.'s National Provider Identifier (NPI) is 1407921372, issued on 11/22/2006.
Does ALLEN FISHER, D.O. prescribe more brand-name or generic drugs?
ALLEN FISHER, D.O.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $45K in brand drug costs.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does ALLEN FISHER, D.O. prescribe most often?
Based on 2023 Medicare Part D data, ALLEN FISHER, D.O.'s most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALLEN FISHER, D.O. accept Medicare?
ALLEN FISHER, D.O. appears in CMS Medicare data with 1,571 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALLEN FISHER, D.O.'s credentials?
ALLEN FISHER, D.O.'s NPI is 1407921372 with credentials D.O.. 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