2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1346636420 CRNP
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AMY LINDEN, CRNP

Geriatric Medicine (Internal Medicine) Physician in BALTIMORE, 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
4K
Medicare Part D claims · 121 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: AMY LINDEN, CRNP is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in BALTIMORE, Maryland with a Medicare Part D prescribing footprint of 4K claims across 121 beneficiaries — 20% brand-name prescribing .

What stands out: AMY LINDEN, CRNP filed 3,838 Medicare Part D claims in 2023 across BALTIMORE, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

AMY LINDEN, CRNP 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).

AMY LINDEN, CRNP at a glance

Quality data not reported

NPI registry status

Active

Issued 04/15/2015

NPI 1346636420

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

3,838 14% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Maryland

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Maryland providers

Maryland providers

Geriatric Medicine (Internal Medicine) Physician share within Maryland

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

Specialty board-certification context

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

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

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

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

AMY LINDEN, CRNP is a Geriatric Medicine (Internal Medicine) Physician provider practicing in BALTIMORE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: CRNP. NPI: 1346636420. 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.

AMY LINDEN, CRNP appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding CRNP credentials at 4940 EASTERN AVENUE, BALTIMORE, MD, 21224, with a listed phone of (410) 550-8093. NPI 1346636420 was issued on 04/15/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LINDEN 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 3,838 prescription claims written by this provider, covering 121 Medicare beneficiaries and totaling roughly $360K in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 1.3%. 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

4940 EASTERN AVENUE
BALTIMORE, MD 21224

Provider Details

NPI 1346636420
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials CRNP
Gender Female
NPI Issued 04/15/2015

Brand vs generic prescribing mix · Typical

AMY LINDEN, CRNP — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 3,838 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.

3,838
Total Claims
$360K
Total Drug Cost
121
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,926
Total Day Supply
99,935
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$338K
Generic Drug Cost
$22K
Opioid Claims
51 (1.3% rate)
Antibiotic Claims
24

Patient Demographics

Average Patient Age
76.9 years
Avg HCC Risk Score
2.78
Gender Split
70% female / 30% male
Age Distribution
<65: 13, 65-74: 35, 75-84: 48, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
348
Amlodipine Besylate
183
Furosemide
171
Lisinopril
155
Gabapentin
137
Sertraline Hcl
133
Eliquis
Apixaban
95
Carvedilol
87
Metoprolol Succinate
86
Levothyroxine Sodium
81

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

Geriatric Medicine (Internal Medicine) Physician Overview

How AMY LINDEN, CRNP fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

AMY LINDEN, CRNP's 3,838 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Maryland

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

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

Frequently Asked Questions

What is AMY LINDEN, CRNP's specialty?
AMY LINDEN, CRNP specializes in Geriatric Medicine (Internal Medicine) Physician and practices in BALTIMORE, Maryland. Credentials: CRNP.
How much does AMY LINDEN, CRNP prescribe under Medicare Part D?
In 2023, AMY LINDEN, CRNP wrote 3,838 Medicare Part D claims totaling $360K in drug costs for 121 beneficiaries.
Where is AMY LINDEN, CRNP located?
AMY LINDEN, CRNP is located at 4940 EASTERN AVENUE, BALTIMORE, MD, 21224. Phone: (410) 550-8093.
What is AMY LINDEN, CRNP's NPI number?
AMY LINDEN, CRNP's National Provider Identifier (NPI) is 1346636420, issued on 04/15/2015.
Does AMY LINDEN, CRNP prescribe more brand-name or generic drugs?
AMY LINDEN, CRNP's prescribing is 20% brand-name and 80% generic drugs by claim count, with $338K in brand drug costs.
Does AMY LINDEN, CRNP prescribe opioids?
Yes, AMY LINDEN, CRNP had 51 opioid claims in 2023 with an opioid prescribing rate of 1.3%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does AMY LINDEN, CRNP prescribe most often?
Based on 2023 Medicare Part D data, AMY LINDEN, CRNP's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMY LINDEN, CRNP accept Medicare?
AMY LINDEN, CRNP appears in CMS Medicare data with 3,838 Part D claims and 121 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMY LINDEN, CRNP's credentials?
AMY LINDEN, CRNP's NPI is 1346636420 with credentials CRNP. 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