2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1376118042
Verify on CMS →

HARJINDER SINGH

Critical Care Medicine (Internal Medicine) Physician in ROYAL OAK, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
476
Medicare Part D claims · 84 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K

What the federal data shows

HARJINDER SINGH filed 476 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in ROYAL OAK, Michigan.

476
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

HARJINDER SINGH's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

476 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

HARJINDER SINGH practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about HARJINDER SINGH?

Quality data not reported

NPI registry status

Active

Issued 05/25/2021

NPI 1376118042

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

476 55% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in Michigan

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Michigan providers

Michigan providers

Critical Care Medicine (Internal Medicine) Physician share within Michigan

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

HARJINDER SINGH appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider at 3601 W 13 MILE RD, ROYAL OAK, MI, 48073, with a listed phone of (248) 551-6489. NPI 1376118042 was issued on 05/25/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SINGH most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 476 prescription claims written by this provider, covering 84 Medicare beneficiaries and totaling roughly $36K in drug spend, with an opioid prescribing rate of 4.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3601 W 13 MILE RD
ROYAL OAK, MI 48073

Provider Details

NPI 1376118042
Specialty Critical Care Medicine (Internal Medicine) Physician
Gender Male
NPI Issued 05/25/2021

License & disciplinary context — Michigan MI-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to HARJINDER SINGH. To verify HARJINDER SINGH's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

476
Total Claims
$36K
Total Drug Cost
84
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
949
Total Day Supply
27,302
Generic Drug Cost
$7K
Opioid Claims
21 (4.4% rate)
Antibiotic Claims
13

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
1.83
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What HARJINDER SINGH prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
28
Losartan Potassium
20
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
19
Amlodipine Besylate
18
Levothyroxine Sodium
18
Furosemide
17
Lisinopril
15
Metoprolol Tartrate
15
Metformin Hcl Er
Metformin Hcl
14
Omeprazole
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Critical Care Medicine (Internal Medicine) Physician Overview

How HARJINDER SINGH fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

HARJINDER SINGH's 476 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Michigan

Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as SINGH.

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is HARJINDER SINGH's specialty?
HARJINDER SINGH specializes in Critical Care Medicine (Internal Medicine) Physician and practices in ROYAL OAK, Michigan.
How much does HARJINDER SINGH prescribe under Medicare Part D?
In 2023, HARJINDER SINGH wrote 476 Medicare Part D claims totaling $36K in drug costs for 84 beneficiaries.
Where is HARJINDER SINGH located?
HARJINDER SINGH is located at 3601 W 13 MILE RD, ROYAL OAK, MI, 48073. Phone: (248) 551-6489.
What is HARJINDER SINGH's NPI number?
HARJINDER SINGH's National Provider Identifier (NPI) is 1376118042, issued on 05/25/2021.
Does HARJINDER SINGH prescribe opioids?
Yes, HARJINDER SINGH had 21 opioid claims in 2023 with an opioid prescribing rate of 4.4%.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does HARJINDER SINGH prescribe most often?
Based on 2023 Medicare Part D data, HARJINDER SINGH's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HARJINDER SINGH accept Medicare?
HARJINDER SINGH appears in CMS Medicare data with 476 Part D claims and 84 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HARJINDER SINGH's credentials?
HARJINDER SINGH's NPI is 1376118042. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology