Dr. Marissa Lara Ambron, DO

  • Allentown, PA
  • Internist
NPI1518113570PAC ID8820266067
Medicare services, 2024
609
Medicare patients, 2024
313
Part D claims, 2024
234
MIPS score, 2024
97
Hospital affiliations
3
Practice address
1736 Hamilton St, Allentown, PA 18104
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Allentown Campus - Interventional Radiology Unit - HOPD

Acute Care Hospital outpatient department · Allentown, Pennsylvania

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Dr. Marissa Lara Ambron is an internist in Allentown, Pennsylvania

Dr. Ambron practices at Allentown Campus - Interventional Radiology Unit - HOPD in Allentown, Pennsylvania.

Dr. Ambron's NPI, 1518113570, was assigned on August 11, 2008. Dr. Ambron graduated from Philadelphia College of Osteopathic Medicine in 2008. Dr. Ambron holds Pennsylvania license OS014928.

NPI and contact details
Medicare PAC ID
8820266067
NPI enumeration date
August 11, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Marissa Lara Ambron practices at Allentown Campus - Interventional Radiology Unit - HOPD in Allentown, Pennsylvania

Dr. Ambron's primary practice is Allentown Campus - Interventional Radiology Unit - HOPD, at 1736 Hamilton St, Allentown, PA 18104.

  • Allentown Campus - Interventional Radiology Unit - HOPD
    1736 Hamilton St, Allentown, PA 18104

Source: Dmand AI Affiliation Data

Dr. Marissa Lara Ambron is affiliated with 7 sites of care and 2 medical groups

Dr. Ambron's primary practice is Allentown Campus - Interventional Radiology Unit - HOPD in Allentown, Pennsylvania. Dr. Ambron is also affiliated with St. Luke's University Hospital - Bethlehem Campus. The medical group on file is St. Luke's South Mountain Family Practice. Dmand AI also links Dr. Ambron to 2 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.

See all 9 affiliations for Dr. Ambron

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Marissa Lara Ambron's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ambron practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Allentown Campus - Interventional Radiology Unit - HOPDAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Marissa Lara Ambron is one of 5,665 internists in Pennsylvania

Internal medicine is Dr. Ambron's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ambron is licensed in Pennsylvania.

Specialties and state licenses

  • Internal medicine, PennsylvaniaPrimaryLicense OS014928 · taxonomy 207R00000X

Internists near Dr. Ambron

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Marissa Lara Ambron billed Medicare for 609 services in 2024

CMS data shows 609 Medicare services from Dr. Ambron across 4 procedure codes in 2024, for 313 Medicare patients. Medicare paid $45,197 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024609
Medicare patients313
Paid by Medicare$45,197
Procedure codes4

Dr. Ambron's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4462024: 60937%

Dr. Ambron compared with the Pennsylvania median for internists, 2024

  • Dr. Ambron
  • Pennsylvania median
Medicare services
609vs 41746% above
Medicare patients
313vs 18569% above
Part D claims
52vs 22477% below

Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.

Dr. Ambron's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Marissa Lara Ambron treated 313 Medicare patients in 2024, average age 77

CMS counts 313 Medicare patients who saw Dr. Ambron in 2024. The largest group is 75 to 84, with 107 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.82, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Ambron's median patient age at 74, with 54% women.

Medicare patients, 2024313
Average age77
Average risk score2.82
Also on Medicaid22%

Dr. Ambron's Medicare patients by age, 2024

Dr. Ambron's Medicare patients by sex, 2024

  • Women15249%
  • Men16151%

Chronic conditions among Dr. Ambron's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease65%
  4. Arthritis61%
  5. Anxiety55%
  6. Heart failure55%
  7. Mood disorders48%
  8. Diabetes47%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ambron's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women54%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Marissa Lara Ambron wrote 234 Medicare Part D claims in 2024

In 2024, Dr. Ambron wrote 234 Medicare Part D claims for 104 patients. 87% of them were for generic drugs. CMS names the drug for 52 of them, across 4 drugs with 11 or more claims each, at $353 in total drug cost. In 2022, CMS named 78 claims across 5 drugs.

Part D claims, 2024234
Drugs named by CMS4
Total drug cost$353
Part D patients104

Dr. Ambron's Part D claims by kind of drug, 2024

  • Generic203 claims87%
  • Brand-name and other31 claims13%

Dr. Ambron's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Ambron's Part D claims, 2024

  • Opioids5%11 of 234 claims
  • Antibiotics12%27 of 234 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2022 to 2024

  • 2022
  • 2024
Claims for drugs CMS names
2022: 782024: 5233%

Drugs named by CMS: 4 in 2024, 5 in 2022.

See all prescribing by Dr. Ambron

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Marissa Lara Ambron scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Ambron for performance year 2024, reported through an alternative payment model (APM). Dr. Ambron accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Ambron's MIPS scores, performance year 2024

  • 97of 100Final score
  • 82.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Marissa Lara Ambron received $609 in industry payments from 2017 to 2024

CMS Open Payments shows 5 general payments to Dr. Ambron from 2 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $359.

General payments to Dr. Ambron by program year, 2017 to 2024

Companies that paid Dr. Ambron the most, 2017 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Ambron

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Marissa Lara Ambron graduated from Philadelphia College of Osteopathic Medicine

Dr. Ambron graduated from Philadelphia College of Osteopathic Medicine in 2008.

  1. Medical schoolPhiladelphia College of Osteopathic Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Marissa Lara Ambron's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Marissa Lara Ambron

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Marissa Lara Ambron's NPI number?

Dr. Marissa Lara Ambron's NPI number is 1518113570. It was assigned on August 11, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Marissa Lara Ambron?

Dr. Marissa Lara Ambron is an internist in Allentown, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Marissa Lara Ambron practice?

Dr. Ambron practices at 1736 Hamilton St, Allentown, PA 18104. Dr. Ambron's primary practice is Allentown Campus - Interventional Radiology Unit - HOPD in Allentown, Pennsylvania. Dmand AI also links Dr. Ambron to 2 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.

What is Dr. Marissa Lara Ambron's medical license number?

Dr. Ambron holds Pennsylvania license OS014928.

Which hospitals is Dr. Marissa Lara Ambron affiliated with?

Dr. Ambron is affiliated with St. Luke's University Hospital - Bethlehem Campus. Dmand AI links Dr. Ambron to 2 more hospitals.

What medical group is Dr. Marissa Lara Ambron part of?

Dr. Ambron is linked to St. Luke's South Mountain Family Practice. Dmand AI links Dr. Ambron to 1 more medical group.

Does Dr. Marissa Lara Ambron accept Medicare?

Yes. CMS data shows Dr. Ambron billed Medicare for 609 services in 2024, and Dr. Ambron accepts Medicare assignment.

What is Dr. Marissa Lara Ambron's MIPS score?

Dr. Ambron's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Marissa Lara Ambron see?

CMS counts 313 Medicare patients who saw Dr. Ambron in 2024, with an average age of 77.

What services does Dr. Marissa Lara Ambron bill to Medicare?

In 2024, Dr. Ambron's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99223).

Show 4 more questionsShow fewer questions

Where did Dr. Marissa Lara Ambron go to medical school?

Dr. Ambron graduated from Philadelphia College of Osteopathic Medicine in 2008.

What drugs does Dr. Marissa Lara Ambron prescribe most?

In 2024 Medicare Part D data, Dr. Ambron's most prescribed drugs by claims were Pantoprazole Sodium, Furosemide and Cephalexin.

Has Dr. Marissa Lara Ambron received payments from drug or device companies?

CMS Open Payments shows $609 in general payments to Dr. Ambron from 2 companies from 2017 to 2024. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.

How long has Dr. Marissa Lara Ambron been practicing?

Dr. Ambron graduated from medical school in 2008, 18 years ago.

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