Dr. Anish George Mammen, MD
- Medicare services, 2024
- 781
- Medicare patients, 2024
- 437
- Part D claims, 2024
- 851
- MIPS score, 2024
- 98
- Hospital affiliations
- 4
- Practice address
- 4760 Union Deposit Road, Harrisburg, PA 17111
- Practice phone
- Call (717) 545-8525
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Harrisburg Endoscopy and Surgery Center
Surgery Center - Medicare-Certified · Harrisburg, Pennsylvania
Find Dr. Mammen's professional email, personal email and mobile number
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Dr. Anish George Mammen is a gastroenterologist in Harrisburg, Pennsylvania
Dr. Mammen practices at Harrisburg Endoscopy and Surgery Center in Harrisburg, Pennsylvania.
Dr. Mammen's NPI, 1053574277, was assigned on July 8, 2008. Dr. Mammen graduated from Tufts University School of Medicine in 2008. Dr. Mammen holds Pennsylvania license MD472422.
- NPI
- 1053574277NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305155045
- NPI enumeration date
- July 8, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (717) 545-8525
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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. Anish George Mammen practices at Harrisburg Endoscopy and Surgery Center in Harrisburg, Pennsylvania
Dr. Mammen's primary practice is Harrisburg Endoscopy and Surgery Center, at 4760 Union Deposit Road, Harrisburg, PA 17111. The practice phone is (717) 545-8525.
- Harrisburg Endoscopy and Surgery Center4760 Union Deposit Road, Harrisburg, PA 17111Phone(717) 545-8525
Source: Dmand AI Affiliation Data
Dr. Anish George Mammen is affiliated with 6 sites of care and 1 medical group
Dr. Mammen's primary practice is Harrisburg Endoscopy and Surgery Center in Harrisburg, Pennsylvania. Dr. Mammen is also affiliated with UPMC Harrisburg. The medical group on file is Harrisburg Gastroenterology. Dmand AI also links Dr. Mammen to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Anish George Mammen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mammen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harrisburg Endoscopy and Surgery Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Anish George Mammen is one of 899 gastroenterologists in Pennsylvania
Gastroenterology is Dr. Mammen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mammen is licensed in Pennsylvania.
Specialties and state licenses
- Gastroenterology, PennsylvaniaPrimary
Gastroenterologists near Dr. Mammen
Counts of gastroenterologists 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. Anish George Mammen billed Medicare for 781 services in 2024
CMS data shows 781 Medicare services from Dr. Mammen across 15 procedure codes in 2024, for 437 Medicare patients. Medicare paid $73,073 for them.
Dr. Mammen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4652024: 5028%
- Surgery
- 2023: 2422024: 27915%
Where Dr. Mammen's Medicare services took place, 2024
- In an office21227%
- In a facility56973%
Dr. Mammen compared with the Pennsylvania median for gastroenterologists, 2024
- Dr. Mammen
- Pennsylvania median
- Medicare services
- 781vs 40195% above
- Medicare patients
- 437vs 29449% above
- Part D claims
- 709vs 37589% above
Medians across 899 gastroenterologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Mammen'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. Anish George Mammen treated 437 Medicare patients in 2024, average age 75
CMS counts 437 Medicare patients who saw Dr. Mammen in 2024. The largest group is 65 to 74, with 184 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.97, 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. Mammen's median patient age at 62, with 56% women.
Dr. Mammen's Medicare patients by age, 2024
Dr. Mammen's Medicare patients by sex, 2024
- Women22752%
- Men21048%
Chronic conditions among Dr. Mammen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease47%
- Chronic kidney disease44%
- Diabetes43%
- Heart failure36%
- Anxiety34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mammen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Anish George Mammen wrote 851 Medicare Part D claims in 2024
In 2024, Dr. Mammen wrote 851 Medicare Part D claims for 235 patients. 88% of them were for generic drugs. CMS names the drug for 709 of them, across 13 drugs with 11 or more claims each, at $130,737 in total drug cost. In 2023, CMS named 434 claims across 6 drugs.
Dr. Mammen's Part D claims by kind of drug, 2024
- Generic748 claims88%
- Brand-name103 claims12%
Dr. Mammen'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. Mammen's Part D claims, 2024
- Antibiotics3%25 of 851 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4342024: 70963%
Drugs named by CMS: 13 in 2024, 6 in 2023.
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. Anish George Mammen scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Mammen for performance year 2024, reported as part of a group. Dr. Mammen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 224 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Mammen, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Mammen's MIPS scores, performance year 2024
- 98of 100Final score
- 95.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mammen ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 92nd percentile224 procedures
- Colonoscopy
- 69th percentile63 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. Anish George Mammen received $5,329 in industry payments from 2016 to 2025
CMS Open Payments shows 273 general payments to Dr. Mammen from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Abbvie Inc. paid the most, $1,771.
General payments to Dr. Mammen by program year, 2016 to 2025
General payments to Dr. Mammen by kind, 2016 to 2025
- Food and beverage$4,89292%
- Education$4378%
Companies that paid Dr. Mammen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Anish George Mammen graduated from Tufts University School of Medicine
Dr. Mammen graduated from Tufts University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Anish George Mammen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors 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 payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Anish George Mammen
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. Anish George Mammen's NPI number?
Dr. Anish George Mammen's NPI number is 1053574277. It was assigned on July 8, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Anish George Mammen?
Dr. Anish George Mammen is a gastroenterologist in Harrisburg, Pennsylvania. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Anish George Mammen practice?
Dr. Mammen practices at 4760 Union Deposit Road, Harrisburg, PA 17111. Dr. Mammen's primary practice is Harrisburg Endoscopy and Surgery Center in Harrisburg, Pennsylvania. Dmand AI also links Dr. Mammen to 3 hospitals and 1 group practice or clinic.
What is Dr. Anish George Mammen's office phone number?
The practice phone on file for Dr. Mammen is (717) 545-8525.
What is Dr. Anish George Mammen's medical license number?
Dr. Mammen holds Pennsylvania license MD472422.
Which hospitals is Dr. Anish George Mammen affiliated with?
Dr. Mammen is affiliated with UPMC Harrisburg. Dmand AI links Dr. Mammen to 3 more hospitals.
What medical group is Dr. Anish George Mammen part of?
Dr. Mammen is linked to Harrisburg Gastroenterology.
Does Dr. Anish George Mammen accept Medicare?
Yes. CMS data shows Dr. Mammen billed Medicare for 781 services in 2024, and Dr. Mammen accepts Medicare assignment.
What is Dr. Anish George Mammen's MIPS score?
Dr. Mammen's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Dr. Anish George Mammen see?
CMS counts 437 Medicare patients who saw Dr. Mammen in 2024, with an average age of 75.
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What services does Dr. Anish George Mammen bill to Medicare?
In 2024, Dr. Mammen's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and office visit, established patient (99213).
Where did Dr. Anish George Mammen go to medical school?
Dr. Mammen graduated from Tufts University School of Medicine in 2008.
What drugs does Dr. Anish George Mammen prescribe most?
In 2024 Medicare Part D data, Dr. Mammen's most prescribed drugs by claims were Pantoprazole Sodium, Famotidine and Omeprazole.
Has Dr. Anish George Mammen received payments from drug or device companies?
CMS Open Payments shows $5,329 in general payments to Dr. Mammen from 30 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Anish George Mammen been practicing?
Dr. Mammen graduated from medical school in 2008, 18 years ago.
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