Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. DIRK G. ASHERMAN M.D.
NPI 1427057611
Orthopaedic Surgery - Foot and Ankle Surgery in Portland, ME

Q: What is Dirk Asherman's NPI number?

The NPI number for Dirk Asherman is 1427057611. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Q: What is Dirk Asherman's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Q: When was this NPI record last updated?

The NPPES record for Dirk Asherman was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 19, 2005PECOS Enrolled

33 SEWALL ST, PORTLAND, ME 04102(207) 828-2100(207) 828-2190 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 1, 2026, Jul 13, 2026, Nov 16, 2015 (3 updates tracked since 2015).

On this page

About Dr. Dirk G. Asherman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DIRK G. ASHERMAN M.D. (NPI 1427057611) is an individual foot and ankle surgery provider in Portland, Maine, licensed in Maine (MD15148) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1427057611

Entity TypeIndividualMale

Primary Taxonomy207XX0004X

Provider Legal NameDR. DIRK G. ASHERMANCredential: M.D.

Location Address33 SEWALL STPortland, ME 04102-2603

Mailing Address33 Sewall StPortland, ME 04102-2638 · (207) 828-2100 · Fax (207) 553-7166

Phone(207) 828-2100

Fax(207) 828-2190

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 1994

Enumeration DateJuly 19, 2005

Last NPPES UpdateSeptember 1, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 1, 2026

✔ NPI 1427057611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Foot and Ankle SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XX0004X

License✔ Licensed in ME · MD15148

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, foot and ankle surgeons deal with adult reconstructive foot and ankle surgery, adult foot and ankle trauma, sports medicine foot and ankle, and children's foot and ankle reconstructive surgery.

33 SEWALL ST, Portland, ME 04102

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Secondary Practice Locations 3

Location 14 Commons Ave Ste AWindham, ME 04062-5554 · Phone (207) 828-2100 · Fax (207) 553-7166

Location 222 Station Ave Ste 201Brunswick, ME 04011-2092 · Phone (207) 828-2100 · Fax (207) 553-7166

Location 314 Thomas Point RdBrunswick, ME 04011-3911 · Phone (207) 828-2100 · Fax (207) 553-7166

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Dirk G. Asherman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3870524853

PECOS Enrollment IDI20050830000255

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Dirk Asherman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Orthopaedic Associates Of Maine PA

Same address

Physical Therapy

33 SEWALL ST
Portland, ME 04102

Reassigned Medicare billing, Maine enrollment
48 clinicians in this Medicare group

NPI 1104648690 (207) 828-2100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

133 services101 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

108 services70 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

101 services66 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

64 services50 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

64 services54 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

45 services45 patients

X-ray of ankle, 2 views 73600

An X-ray of the ankle, 2 views, is a quick, painless test that produces images of the bones and joints in your ankle. Two different angles are used to provide a more complete picture. It helps detect fractures, sprains, arthritis, or other abnormalities. It's safe and typically takes only a few minutes.

29 services25 patients

Application of short leg splint from calf to foot 29515

A short leg splint is a support device applied from the calf to the foot. It's used to immobilize, protect, and support an injured leg or foot, promoting healing. It's typically made of plaster or fiberglass, padded for comfort, and secured with bandages.

28 services25 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

27 services27 patients

Cast supplies, short leg splint, adult (11 years +), plaster Q4045

A short leg splint, made from plaster, is applied to an adult or a child aged 11+ to support and immobilize an injured leg. It aids in healing by preventing movement, reducing pain and swelling. Cast supplies are used to apply, adjust, or remove the splint.

27 services24 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

26 services22 patients

X-ray of foot, 2 views 73620

An X-ray of the foot, 2 views, is a quick, painless test that produces images of the bones and structures inside your foot. Two different angles are used to provide a comprehensive view. This helps doctors diagnose fractures, infections, or other abnormalities.

26 services21 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northern Light Health

Acute Care Hospitals · Portland, ME

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number200008

Location144 State StreetPortland, ME 04101 · Cumberland County

Emergency services Birthing friendly

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Addition to lower extremity orthosis, suspension sleeve L2397

DME-Orthotic Devices · category DF000N

5 suppliers14 claims20 services$94.91 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TERYN CLARK HANRAHAN ATC

Specialist/Technologist (Athletic Trainer)