Dr. Shamsundar Ramrattan, DO
- Medicare services, 2023
- 1,184
- Medicare patients, 2024
- 14
- Part D claims, 2024
- 167
- MIPS score, 2024
- 81
- Industry payments
- $44
- Practice address
- 18564 Us-18, Apple Valley, CA 92307
- Practice phone
- Call (760) 242-7777
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Choice Urgent Care - Apple Valley
Urgent Care Center · Apple Valley, California
Find Dr. Ramrattan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Shamsundar Ramrattan is an internist in Apple Valley, California
Dr. Ramrattan practices at Choice Urgent Care - Apple Valley in Apple Valley, California.
Dr. Ramrattan's NPI, 1598968844, was assigned on June 6, 2007. Dr. Ramrattan graduated from Des Moines University in 1993. Dr. Ramrattan holds California license 2OA6991.
- NPI
- 1598968844NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486672524
- NPI enumeration date
- June 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 242-7777
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Shamsundar Ramrattan practices at Choice Urgent Care - Apple Valley in Apple Valley, California
Dr. Ramrattan's primary practice is Choice Urgent Care - Apple Valley, at 18564 Us-18, Apple Valley, CA 92307. The practice phone is (760) 242-7777.
- Choice Urgent Care - Apple Valley18564 Us-18, Apple Valley, CA 92307Phone(760) 242-7777
Source: Dmand AI Affiliation Data
Dr. Shamsundar Ramrattan is affiliated with 2 sites of care and 5 medical groups
Dr. Ramrattan's primary practice is Choice Urgent Care - Apple Valley in Apple Valley, California. The medical group on file is Choice Medical Group. Dmand AI also links Dr. Ramrattan to 4 more medical groups and 1 group practice or clinic, each named with a free account. Dr. Ramrattan's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Shamsundar Ramrattan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ramrattan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Choice Urgent Care - Apple Valley | Available with a free account |
| +1 more site and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Shamsundar Ramrattan is one of 16,751 internists in California
Internal medicine is Dr. Ramrattan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ramrattan is board certified in 1997 - 2026 by the CA State License. Dr. Ramrattan is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure, acute sinusitis, acute skin infection, chronic anemia, chronic diabetes, chronic hypertension, chronic kidney disease and contact dermatitis among the conditions Dr. Ramrattan treats.
Internists near Dr. Ramrattan
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. Shamsundar Ramrattan billed Medicare for 1,184 services in 2023
CMS data shows 1,184 Medicare services from Dr. Ramrattan across 26 procedure codes in 2023, for 14 Medicare patients. Medicare paid $32,545 for them. Every service was in an office.
Dr. Ramrattan's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Lab and pathology
- 2022: 6052023: 46922%
- Drugs given in the office
- 2022: 3892023: 31320%
- Office and hospital visits
- 2022: 3152023: 20734%
- Tests and treatments
- 2022: 2692023: 19528%
Dr. Ramrattan compared with the California median for internists, 2023
- Dr. Ramrattan
- California median
- Medicare services
- 1,184vs 3613.3 times
- Medicare patients
- 14vs 15191% below
- Part D claims
- 51vs 42188% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ramrattan's most billed Medicare procedure codes, 2023
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ramrattan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Shamsundar Ramrattan treated 14 Medicare patients in 2024, average age 77
CMS counts 14 Medicare patients who saw Dr. Ramrattan in 2024. The largest group is under 65, with 0 patients. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ramrattan's median patient age at 63, with 60% women.
Dr. Ramrattan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Ramrattan's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ramrattan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Shamsundar Ramrattan wrote 167 Medicare Part D claims in 2024
In 2024, Dr. Ramrattan wrote 167 Medicare Part D claims for 98 patients. 87% of them were for generic drugs. CMS names the drug for 51 of them, across 3 drugs with 11 or more claims each, at $195 in total drug cost. In 2023, CMS named 516 claims across 18 drugs.
Dr. Ramrattan's Part D claims by kind of drug, 2024
- Generic145 claims87%
- Brand-name22 claims13%
Dr. Ramrattan'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. Ramrattan's Part D claims, 2024
- Antibiotics41%69 of 167 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: 5162024: 5190%
Drugs named by CMS: 3 in 2024, 18 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. Shamsundar Ramrattan scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Ramrattan for performance year 2024, reported as part of a group. Dr. Ramrattan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ramrattan's MIPS scores, performance year 2024
- 81of 100Final score
- 62.4of 100Quality
- 76of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Shamsundar Ramrattan received $44 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Ramrattan from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $25.
Companies that paid Dr. Ramrattan the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Shamsundar Ramrattan graduated from Des Moines University
Dr. Ramrattan graduated from Des Moines University in 1993.
- Medical school
- Board certified in 1997 - 2026
- Board certified in 2022 - 2024
- Board certified in 1995 - 1999
Source: Dmand AI Professional Profile Data
Dr. Shamsundar Ramrattan accepts plans from 10 insurance carriers
Dr. Ramrattan is in network with 10 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- Molina
- Regence Health Plans
- United Healthcare
- +2 more carriersWith a free account
Plan types Dr. Ramrattan accepts, by number of carriers
- Medicare8
- PPO6
- HMO4
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Shamsundar Ramrattan'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Shamsundar Ramrattan
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. Shamsundar Ramrattan's NPI number?
Dr. Shamsundar Ramrattan's NPI number is 1598968844. It was assigned on June 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Shamsundar Ramrattan?
Dr. Shamsundar Ramrattan is an internist in Apple Valley, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Shamsundar Ramrattan practice?
Dr. Ramrattan practices at 18564 Us-18, Apple Valley, CA 92307. Dr. Ramrattan's primary practice is Choice Urgent Care - Apple Valley in Apple Valley, California. Dmand AI also links Dr. Ramrattan to 4 medical groups and 1 group practice or clinic.
What is Dr. Shamsundar Ramrattan's office phone number?
The practice phone on file for Dr. Ramrattan is (760) 242-7777.
What is Dr. Shamsundar Ramrattan's medical license number?
Dr. Ramrattan holds California license 2OA6991.
What medical group is Dr. Shamsundar Ramrattan part of?
Dr. Ramrattan is linked to Choice Medical Group. Dmand AI links Dr. Ramrattan to 4 more medical groups.
Does Dr. Shamsundar Ramrattan accept Medicare?
Yes. CMS data shows Dr. Ramrattan billed Medicare for 1,184 services in 2023, and Dr. Ramrattan accepts Medicare assignment.
What is Dr. Shamsundar Ramrattan's MIPS score?
Dr. Ramrattan's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Shamsundar Ramrattan see?
CMS counts 14 Medicare patients who saw Dr. Ramrattan in 2024, with an average age of 77.
Is Dr. Shamsundar Ramrattan board certified?
Yes. Dr. Ramrattan is board certified in 1997 - 2026 by the CA State License.
Show 6 more questionsShow fewer questions
What services does Dr. Shamsundar Ramrattan bill to Medicare?
In 2023, Dr. Ramrattan's most billed Medicare services were injected or infused drug (J0696), office visit, established patient (99214) and lab and pathology test (80048).
Where did Dr. Shamsundar Ramrattan go to medical school?
Dr. Ramrattan graduated from Des Moines University in 1993.
What drugs does Dr. Shamsundar Ramrattan prescribe most?
In 2024 Medicare Part D data, Dr. Ramrattan's most prescribed drugs by claims were Azithromycin, Cephalexin and Methylprednisolone.
Has Dr. Shamsundar Ramrattan received payments from drug or device companies?
CMS Open Payments shows $44 in general payments to Dr. Ramrattan from 2 companies from 2024 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Shamsundar Ramrattan been practicing?
Dr. Ramrattan graduated from medical school in 1993, 33 years ago.
What insurance does Dr. Shamsundar Ramrattan accept?
Dr. Ramrattan is in network with 10 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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