What is Alexander Marsh's NPI number?

Alexander Marsh's National Provider Identifier (NPI) is 1013990555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alexander Marsh's specialty?

Alexander Marsh is listed in the NPPES registry with a primary specialty of Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).

Where is Alexander Marsh located?

Alexander Marsh's practice location on file with NPPES is 10180 Se Sunnyside Rd, Clackamas, OR 97015-8970.

What is Alexander Marsh's phone number?

The practice phone number listed in the NPPES registry for Alexander Marsh is (503) 571-8488.

Does Alexander Marsh accept Medicare?

Alexander Marsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Alexander Marsh's NPI active?

Yes — Alexander Marsh's NPI (1013990555) is active in the NPPES registry as of the last update on 2026-01-16.

IndividualActiveAccepts Medicare

Alexander Marsh, MD

NPI 1013990555 · Emergency Medical Services (Emergency Medicine) Physician · Clackamas, OR

Alexander Marsh, MD is a Emergency Medical Services (Emergency Medicine) Physician provider in Clackamas, OR (NPI 1013990555).

Provider details

NPI number: 1013990555
Entity type: Individual
Primary specialty: Emergency Medical Services (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 01060628A (IN)

Practice location

10180 Se Sunnyside Rd

Kaiser Permanente

Clackamas, OR 97015-8970

Phone: (503) 571-8488

Street-level locationGet directions

More OR providers

Mailing address

10180 Se Sunnyside Rd

Clackamas, OR 97015-9764

Specialties & taxonomies

Emergency Medical Services (Emergency Medicine) PhysicianPrimary207PE0004XLicense MD26322 (OR)
Allopathic & Osteopathic Physicians
Emergency Medicine Physician207P00000XLicense 01060628A (IN)
Allopathic & Osteopathic Physicians
Family Medicine Physician207Q00000XLicense MARS102922 (WA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(74/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
20 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
253 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Emergency Department Visit With High Level of Medical Decision Making99285	139	$165
Emergency Department Visit With Moderate Level of Medical Decision Making99284	69	$114
Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010	30	$8
Emergency Department Visit With Low Level of Medical Decision Making99283	15	$65

Typical Medicare-allowed amounts for these services range $8–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Prednisone	69	65
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen	49	48
Cephalexin	36	35
Albuterol Sulfatebrand: Albuterol Sulfate Hfa	31	29
Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim	31	30
Doxycycline Hyclate	29	27

Enumerated: 2005-11-29
Last updated: 2026-01-16
Certified: 2026-01-16

Frequently asked questions

What is Alexander Marsh's NPI number?: Alexander Marsh's National Provider Identifier (NPI) is 1013990555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Alexander Marsh's specialty?: Alexander Marsh is listed in the NPPES registry with a primary specialty of Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
Where is Alexander Marsh located?: Alexander Marsh's practice location on file with NPPES is 10180 Se Sunnyside Rd, Clackamas, OR 97015-8970.
What is Alexander Marsh's phone number?: The practice phone number listed in the NPPES registry for Alexander Marsh is (503) 571-8488.
Does Alexander Marsh accept Medicare?: Alexander Marsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Alexander Marsh's NPI active?: Yes — Alexander Marsh's NPI (1013990555) is active in the NPPES registry as of the last update on 2026-01-16.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Emergency Department Visit With High Level of Medical Decision Making99285	139	$165
Emergency Department Visit With Moderate Level of Medical Decision Making99284	69	$114
Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010	30	$8
Emergency Department Visit With Low Level of Medical Decision Making99283	15	$65

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Prednisone	69	65
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen	49	48
Cephalexin	36	35
Albuterol Sulfatebrand: Albuterol Sulfate Hfa	31	29
Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim	31	30
Doxycycline Hyclate	29	27

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)