GREGORY BAKER
NPI 1255726667
Internal Medicine in Boston, MA

Q: What is Gregory Baker's NPI number?

The NPI number for Gregory Baker is 1255726667. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Q: What is Gregory Baker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Baker was last updated on June 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 02, 2015PECOS EnrolledAccepts Medicare Assignment

83.89/100

CMS Quality Rating

801 MASSACHUSETTS AVE, CROSSTOWN 2, BOSTON, MA 02118(617) 414-7399(617) 414-4676 Get Directions Write a Review

NPPES record last updated: June 5, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Gregory Baker NPPES

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

GREGORY BAKER (NPI 1255726667) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (274252) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Union Hospital Of Cecil County, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1255726667

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameGREGORY BAKER

Location Address801 MASSACHUSETTS AVE, CROSSTOWN 2Boston, MA 02118-2605

Mailing Address720 Harrison Ave, Dob 503Boston, MA 02118-2371

Phone(617) 414-7399

Fax(617) 414-4676

Sole ProprietorYes

Medical School CMSOtherGraduated 2015

Enumeration DateApril 2, 2015

Last NPPES UpdateJune 5, 2018

✔ NPI 1255726667 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MA · 274252

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

801 MASSACHUSETTS AVE, Boston, MA 02118

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next, Highmark Blue Cross Blue Shield Delaware.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

Gregory Baker 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 ID3971810029

PECOS Enrollment IDI20230910000072

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 26

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.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

709 services705 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

653 services572 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.

541 services369 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

362 services286 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.

319 services219 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.

170 services163 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

165 services165 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.

143 services143 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

106 services103 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.

78 services76 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

65 services63 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

64 services62 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

63 services18 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

61 services60 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

58 services58 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

50 services49 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

48 services48 patients

Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional 93229

An Electrocardiogram (ECG) is a test that records your heart's electrical activity for up to 30 days. You trigger a transmission if you feel symptoms, which is then reviewed by a healthcare professional. The report helps diagnose heart conditions.

48 services48 patients

Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.

43 services41 patients

Electrocardiogram (ecg) 2-day continuous with review and report by health care professional 93224

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. In a 2-day continuous ECG, sensors attached to your chest monitor your heart's rhythm over 48 hours. A healthcare professional then reviews the data to identify any irregularities.

34 services34 patients

Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring and review and report by health care professional 93268

An Electrocardiogram (ECG) is a non-invasive test that records the heart's electrical activity. With continuous monitoring for up to 30 days, it helps detect irregularities or abnormalities. If symptoms occur, they're noted for review. A health professional then analyzes the data and provides a report.

24 services24 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

21 services21 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

18 services18 patients

Insertion of tube in right heart chambers and coronary artery for diagnosis with review by radiologist 93456

This procedure involves placing a small tube into your right heart chambers and coronary artery. It helps in diagnosing heart conditions. A radiologist will review the images obtained for accurate results. It's a standard, safe process.

15 services15 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

13 services13 patients

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

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Union Hospital Of Cecil County

Acute Care Hospitals · Elkton, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210032

Location106 Bow StreetElkton, MD 21921 · Cecil County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02118 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

Most-billed visit code 99214

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.

83.89/100

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

Scored as part of a group practice

Quality

61.53

Promoting Interoperability

100

Improvement Activities

Cost

84.78

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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.

DR. FELICIA ELIZABETH PATCH MD

Internal Medicine

801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118

Suffolk County (617) 414-4376

CORINA ELENA BEINER MARTINEZ

Student in an Organized Health Care Education/Training Program

801 MASSACHUSETTS AVE
BOSTON, MA 02118

Suffolk County (617) 414-5951

MAYERLIN MORLA UBIERA

Counselor (Mental Health)

801 MASSACHUSETTS AVE
BOSTON, MA 02118

Suffolk County (617) 651-2538

XANTHIA ALIX TUCKER MD

Internal Medicine

801 MASSACHUSETTS AVE, SUITE 5A, CROSSTOWN BLDG
BOSTON, MA 02118

Suffolk County (617) 414-5951

DR. JENNIFER K HUGHES M.D.

Internal Medicine (Hospice and Palliative Medicine)

801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118

Suffolk County (617) 414-4376

LUCY CURELL

Community Health Worker

801 MASSACHUSETTS AVE
BOSTON, MA 02118

Suffolk County (617) 991-8264

AMOS WU

Internal Medicine

801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118

Suffolk County (617) 414-7399

MS. ARCHANA VASUDEVAN DO

Internal Medicine

801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118

Suffolk County (617) 414-7399

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 Baker's NPI number?

The NPI number for Gregory Baker is 1255726667. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Where is Gregory Baker located?

Gregory Baker practices at 801 Massachusetts Ave Crosstown 2, Boston, MA 02118. The listed phone number is (617) 414-7399.

What is Gregory Baker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gregory Baker enrolled in Medicare?

Yes. Gregory Baker 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 Baker accept?

Health plans from AmeriHealth Caritas Next and Highmark Blue Cross Blue Shield Delaware list Gregory Baker 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 Baker affiliated with any hospitals?

According to CMS data, Gregory Baker is affiliated with Union Hospital Of Cecil County.

When was this NPI record last updated?

The NPPES record for Gregory Baker was last updated on June 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.