Dr. Ranjit Kaur Reen, MD
- Medicare services, 2024
- 435
- Medicare patients, 2024
- 115
- Part D claims, 2024
- 2,317
- Hospital affiliations
- 1
- Industry payments
- $376
- Practice address
- 2000 Mowry Ave, Fremont, CA 94538
- Practice phone
- Call (510) 797-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Reen's professional email, personal email and mobile number
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Dr. Ranjit Kaur Reen is an internist in Fremont, California
Dr. Reen practices at Washington Health in Fremont, California, part of Washington Health.
Dr. Reen's NPI, 1568512432, was assigned on January 11, 2007. Dr. Reen graduated from Government Medical College of Jammu and Kashmire in 1971. Dr. Reen holds California license A52734.
- NPI
- 1568512432NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597891184
- NPI enumeration date
- January 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 797-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 81
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ranjit Kaur Reen practices at Washington Health in Fremont, California
Dr. Reen's primary practice is Washington Health, at 2000 Mowry Ave, Fremont, CA 94538 in Alameda County. The practice phone is (510) 797-1111.
- Washington Health2000 Mowry Ave, Fremont, CA 94538 · Alameda CountyPhone(510) 797-1111
Source: Dmand AI Affiliation Data
Dr. Ranjit Kaur Reen is affiliated with 1 site of care
Dr. Reen's primary practice is Washington Health in Fremont, California, part of Washington Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ranjit Kaur Reen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Reen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Washington Health | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Washington Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ranjit Kaur Reen is one of 16,751 internists in California
Internal medicine is Dr. Reen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Reen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute gastroduodenitis, aneurysm, chronic hypertension, high cholesterol, peptic ulcer, rash, underactive thyroid and upper respiratory infection (URI) among the conditions Dr. Reen treats.
Internists near Dr. Reen
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. Ranjit Kaur Reen billed Medicare for 435 services in 2024
CMS data shows 435 Medicare services from Dr. Reen across 4 procedure codes in 2024, for 115 Medicare patients. Medicare paid $34,853 for them. Every service was in an office.
Dr. Reen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3822024: 4046%
- Other services
- 2023: 292024: 1645%
- Tests and treatments
- 2023: 142024: 157%
Dr. Reen compared with the California median for internists, 2024
- Dr. Reen
- California median
- Medicare services
- 435vs 36120% above
- Medicare patients
- 115vs 15124% below
- Part D claims
- 1,993vs 4214.7 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Reen'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.
Need commercial claims for Dr. Reen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Reen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ranjit Kaur Reen treated 115 Medicare patients in 2024, average age 75
CMS counts 115 Medicare patients who saw Dr. Reen in 2024. The largest group is 75 to 84, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 82% are also on Medicaid. Their average risk score is 0.86, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Reen's median patient age at 61, with 70% women.
Dr. Reen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Reen's Medicare patients by sex, 2024
- Women8271%
- Men3329%
Chronic conditions among Dr. Reen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes43%
- Arthritis30%
- Ischemic heart disease20%
- Chronic kidney disease12%
- Heart failure11%
- Asthma10%
Share of Medicare patients with each condition. A patient can have several.
Dr. Reen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women70%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ranjit Kaur Reen wrote 2,317 Medicare Part D claims in 2024
In 2024, Dr. Reen wrote 2,317 Medicare Part D claims for 142 patients. 93% of them were for generic drugs. CMS names the drug for 1,993 of them, across 47 drugs with 11 or more claims each, at $81,608 in total drug cost. In 2023, CMS named 2,170 claims across 50 drugs.
Dr. Reen's Part D claims by kind of drug, 2024
- Generic2,146 claims93%
- Brand-name and other171 claims7%
Dr. Reen'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. Reen's Part D claims, 2024
- Antibiotics3%70 of 2,317 claims
- Antipsychotics, patients 65 and over1%29 of 2,317 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: 2,1702024: 1,9938%
Drugs named by CMS: 47 in 2024, 50 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
How Dr. Ranjit Kaur Reen takes part in Medicare
Dr. Reen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ranjit Kaur Reen received $376 in industry payments from 2016 to 2024
CMS Open Payments shows 12 general payments to Dr. Reen from 6 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $169.
General payments to Dr. Reen by program year, 2016 to 2024
Companies that paid Dr. Reen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ranjit Kaur Reen graduated from Government Medical College of Jammu and Kashmire
Dr. Reen graduated from Government Medical College of Jammu and Kashmire in 1971.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Ranjit Kaur Reen accepts plans from 14 insurance carriers
Dr. Reen is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +6 more carriersWith a free account
Plan types Dr. Reen accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Ranjit Kaur Reen'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) |
| 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. Ranjit Kaur Reen
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. Ranjit Kaur Reen's NPI number?
Dr. Ranjit Kaur Reen's NPI number is 1568512432. It was assigned on January 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ranjit Kaur Reen?
Dr. Ranjit Kaur Reen is an internist in Fremont, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ranjit Kaur Reen practice?
Dr. Reen practices at 2000 Mowry Ave, Fremont, CA 94538. Dr. Reen's primary practice is Washington Health in Fremont, California, part of Washington Health.
What is Dr. Ranjit Kaur Reen's office phone number?
The practice phone on file for Dr. Reen is (510) 797-1111.
What is Dr. Ranjit Kaur Reen's medical license number?
Dr. Reen holds California license A52734.
Which hospitals is Dr. Ranjit Kaur Reen affiliated with?
Dr. Reen practices at Washington Health in Fremont, California.
Does Dr. Ranjit Kaur Reen accept Medicare?
Yes. CMS data shows Dr. Reen billed Medicare for 435 services in 2024, and Dr. Reen accepts Medicare assignment.
How many Medicare patients does Dr. Ranjit Kaur Reen see?
CMS counts 115 Medicare patients who saw Dr. Reen in 2024, with an average age of 75.
What services does Dr. Ranjit Kaur Reen bill to Medicare?
In 2024, Dr. Reen's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Ranjit Kaur Reen go to medical school?
Dr. Reen graduated from Government Medical College of Jammu and Kashmire in 1971.
Show 4 more questionsShow fewer questions
What drugs does Dr. Ranjit Kaur Reen prescribe most?
In 2024 Medicare Part D data, Dr. Reen's most prescribed drugs by claims were Levothyroxine Sodium, Rosuvastatin Calcium and Amlodipine Besylate.
Has Dr. Ranjit Kaur Reen received payments from drug or device companies?
CMS Open Payments shows $376 in general payments to Dr. Reen from 6 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Ranjit Kaur Reen been practicing?
Dr. Reen graduated from medical school in 1971, 55 years ago.
What insurance does Dr. Ranjit Kaur Reen accept?
Dr. Reen is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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