DR. MARK S LOEWEN M.D.
NPI 1295747319
Surgery in Hyannis, MA

Q: What is Mark Loewen's NPI number?

The NPI number for Mark Loewen is 1295747319. It was assigned to this individual provider in the NPPES registry on August 13, 2006.

Q: What is Mark Loewen's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Loewen was last updated on September 23, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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 August 13, 2006PECOS EnrolledAccepts Medicare Assignment

79.84/100

CMS Quality Rating

40 LEWIS BAY RD, HYANNIS, MA 02601(508) 775-0800(508) 771-8565 Get Directions Write a Review

NPPES record last updated: September 23, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Mark S Loewen M.d. NPPES

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

DR. MARK S LOEWEN M.D. (NPI 1295747319) is an individual surgery provider in Hyannis, Massachusetts, licensed in Massachusetts (231062) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Cape Cod Hospital, and is a graduate of Rush Medical College Of Rush University (2001).

NPPES Registry Identity

NPI1295747319

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. MARK S LOEWENCredential: M.D.

Location Address40 LEWIS BAY RDHyannis, MA 02601-5210

Mailing Address40 Lewis Bay RdHyannis, MA 02601-5210 · (508) 775-0800 · Fax (508) 771-8565

Phone(508) 775-0800

Fax(508) 771-8565

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 2001

Enumeration DateAugust 13, 2006

Last NPPES UpdateSeptember 23, 2008

✔ NPI 1295747319 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in MA · 231062

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Also ListedSpecialistTaxonomy 174400000X · License 231062 (MA)

40 LEWIS BAY RD, Hyannis, MA 02601

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Other Identifiers 9

Other2713608Unitedhealthcare

Medicare PIN000109901MA

Medicaid2133750MA

Other496072MA · Tufts

OtherJ41321MA · Bc/bs

Other1617292Cigna

OtherP00427689Railroad Medicare

OtherAA82270Hphc

Medicare UPINI60606

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark S Loewen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224034202

PECOS Enrollment IDI20070720000572

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 Mark Loewen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medical Affiliates Of Cape Cod, Inc.

0.1 mi

Internal Medicine

27 PARK ST, GLEASON HOUSE
Hyannis, MA 02601

Reassigned Medicare billing, Massachusetts enrollment
423 clinicians in this Medicare group

NPI 1770534927 (508) 862-5040

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.

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

85 services85 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

75 services51 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.

51 services46 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

37 services27 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

36 services36 patients

Removal of external hemorrhoids by rubber banding 46221

Rubber band ligation is a procedure used to treat external hemorrhoids. A doctor places small rubber bands around the base of the hemorrhoids. This cuts off blood supply, causing them to shrink and fall off, typically within a week.

26 services25 patients

Repair of groin hernia (5 years or older) 49505

Repair of a groin hernia is a procedure aimed at fixing an abnormal bulge that can occur in the area between your abdomen and thigh. This condition happens when tissue pushes through a weak spot in your lower abdominal wall. The repair procedure returns this tissue back to its proper place.

24 services24 patients

Removal of gallbladder using an endoscope 47562

This procedure, known as endoscopic gallbladder removal, involves a surgeon using a special tool called an endoscope to remove your gallbladder through small incisions. It's typically done to treat gallstones and related complications. It's a less invasive method, often leading to quicker recovery.

20 services20 patients

Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm 12032

This procedure involves the repair of a wound between 2.6-7.5 cm located on the scalp, underarms, trunk, arms, or legs. The process includes cleaning, debridement (removal of damaged tissue), and suturing (stitching) of the wound to promote healing.

18 services18 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

15 services15 patients

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.

12 services12 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.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

Cape Cod Hospital

Acute Care Hospitals · Hyannis, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220012

Location27 Park StreetHyannis, MA 02601 · Barnstable County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$90.70 typical visit price

range $58.86 – $177.36

Typical copayment $22.67 (range $14.71 – $44.34)

Most-billed visit code 99203

Established Patient

$73.22 typical visit price

range $19.11 – $144.84

Typical copayment $18.30 (range $4.77 – $36.21)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.84/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

63.36

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 2

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

JILL S OXLEY M.D.

Surgery

40 LEWIS BAY RD, CAPE COD SURGICAL ASSOC.
HYANNIS, MA 02601

Barnstable County (508) 775-0800

DR. RICHARD BARRON LEWIS MD

Surgery

40 LEWIS BAY RD
HYANNIS, MA 02601

Barnstable County (508) 775-0800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Loewen's NPI number?

The NPI number for Mark Loewen is 1295747319. It was assigned to this individual provider in the NPPES registry on August 13, 2006.

Where is Mark Loewen located?

Mark Loewen practices at 40 Lewis Bay Rd, Hyannis, MA 02601. The listed phone number is (508) 775-0800.

What is Mark Loewen's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mark Loewen enrolled in Medicare?

Yes. Mark Loewen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mark Loewen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Loewen reassigns Medicare benefits to Medical Affiliates Of Cape Cod, Inc. (Hyannis, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Loewen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Loewen accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Mark Loewen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Loewen affiliated with any hospitals?

According to CMS data, Mark Loewen is affiliated with Cape Cod Hospital.

When was this NPI record last updated?

The NPPES record for Mark Loewen was last updated on September 23, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.