DR. GREGORY GRIMBERG MD
NPI 1104245307
Surgery in Mason City, IA

Q: What is Gregory Grimberg's NPI number?

The NPI number for Gregory Grimberg is 1104245307. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Q: What is Gregory Grimberg'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 Gregory Grimberg was last updated on August 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 April 15, 2014PECOS EnrolledAccepts Medicare Assignment

250 S CRESCENT DR, MASON CITY, IA 50401(641) 494-5300(641) 494-5321 Get Directions Write a Review

NPPES record last updated: August 28, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 28, 2020, Aug 6, 2019 (2 updates tracked since 2019).

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About Dr. Gregory Grimberg Md NPPES

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

DR. GREGORY GRIMBERG MD (NPI 1104245307) is an individual surgery provider in Mason City, Iowa, licensed in Iowa (MD-47527) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and maintains a secondary practice location in Baltimore.

NPPES Registry Identity

NPI1104245307

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. GREGORY GRIMBERGCredential: MD

Location Address250 S CRESCENT DRMason City, IA 50401-2926

Mailing Address250 S Crescent DrMason City, IA 50401-2926 · (641) 494-5300 · Fax (641) 494-5321

Phone(641) 494-5300

Fax(641) 494-5321

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 2014

Enumeration DateApril 15, 2014

Last NPPES UpdateAugust 28, 20202 updates tracked since enumeration

NPPES CertifiedAugust 28, 2020

✔ NPI 1104245307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

Licenses✔ Licensed in IA · MD-47527✔ Licensed in MD · D86982

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.

250 S CRESCENT DR, Mason City, IA 50401

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Secondary Practice Location 1

Location 14940 Eastern Ave Rm 3933DBaltimore, MD 21224-2735 · Phone (410) 550-6875 · Fax (410) 550-1822

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Grimberg Md 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 ID446588305

PECOS Enrollment IDI20200910002699

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.

Areas of Expertise CMS Part B claims 14

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 high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

109 services71 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.

109 services32 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

76 services68 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.

66 services12 patients

Study of esophageal sensation by balloon distension 91040

This procedure involves inflating a small balloon in the esophagus, the tube connecting your mouth to your stomach. It helps doctors understand how your esophagus responds to pressure changes, aiding in the diagnosis of certain digestive disorders.

46 services32 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

46 services44 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

41 services21 patients

Monitoring and recording of esophageal function through a capsule attached to the esophagus wall 91035

This procedure involves a small capsule being attached to your esophagus wall. It measures and records how your esophagus is functioning, helping to identify any potential issues. You won't feel the capsule and it will pass naturally through your system after a few days.

33 services33 patients

Study of esophagus to assess movement 91010

This procedure, known as esophageal manometry, involves studying the esophagus or food pipe to evaluate its movement and pressure. It helps understand how well the esophagus can move food to the stomach. Involving a thin, flexible tube, it's a safe, minimally invasive test.

29 services29 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

27 services27 patients

Repair of hernia of muscle at esophagus and stomach using an endoscope 43281

This procedure fixes a hernia, an area where your stomach and esophagus muscles have weakened. Using an endoscope, a thin tube with a camera, the doctor can see and repair the hernia without large incisions, promoting quicker recovery.

21 services21 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

18 services14 patients

Insertion of stomach tube using a flexible endoscope 43246

This procedure involves the use of a flexible endoscope, a thin tube with a light and camera, to insert a stomach tube. It helps doctors view and access your stomach without surgery. It's typically performed under sedation to ensure comfort.

15 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

14 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Mercyone North Iowa Medical Center

Acute Care Hospitals · Mason City, IA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160064

Location1000 Fourth Street SWMason City, IA 50401 · Cerro Gordo County

Emergency services Birthing friendly

Mitchell County Regional Health

Critical Access Hospitals · Osage, IA

OwnershipGovernment - Local

CMS Certification Number161323

Location616 North Eighth StreetOsage, IA 50461 · Mitchell County

Emergency services

Palo Alto County Hospital

Critical Access Hospitals · Emmetsburg, IA

OwnershipGovernment - Local

CMS Certification Number161357

Location3201 1st StreetEmmetsburg, IA 50536 · Palo Alto County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50401 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

$81.84 typical visit price

range $52.96 – $161.40

Typical copayment $20.46 (range $13.24 – $40.35)

Most-billed visit code 99203

Established Patient

$66.36 typical visit price

range $16.91 – $131.98

Typical copayment $16.59 (range $4.22 – $32.99)

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.

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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.

LISA HOLT PMHNP-BC

Nurse Practitioner (Psychiatric/Mental Health)

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5170

DR. RENE RECINOS M.D., PHD

Plastic Surgery

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5360

DR. ANGELA KAYE HARVEY AU.D.

Audiologist

250 S CRESCENT DR, #100
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5180

DR. MICHAEL W CRANE M.D.

Orthopaedic Surgery

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5210

KAITLYN ELIZABETH MCDERMITT PA-C

Physician Assistant

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5400

TRISHA LYNN TIBBITTS ARNP

Nurse Practitioner (Family)

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5360

MASON CITY CLINIC PC

Otolaryngology

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (800) 622-1411

DR. BYRON T BEASLEY MD

Internal Medicine (Cardiovascular Disease)

250 S CRESCENT DR
MASON CITY, IA 50401

Cerro Gordo County (641) 494-5300

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 Gregory Grimberg's NPI number?

The NPI number for Gregory Grimberg is 1104245307. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Where is Gregory Grimberg located?

Gregory Grimberg practices at 250 S Crescent Dr, Mason City, IA 50401. The listed phone number is (641) 494-5300.

What is Gregory Grimberg's specialty?

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

Is Gregory Grimberg enrolled in Medicare?

Yes. Gregory Grimberg 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.

What insurance does Gregory Grimberg accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Gregory Grimberg 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 Gregory Grimberg affiliated with any hospitals?

According to CMS data, Gregory Grimberg is affiliated with Mercyone North Iowa Medical Center, Mitchell County Regional Health and Palo Alto County Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Grimberg was last updated on August 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.